2019

• Statement 1 is incorrect. A jagir was assigned to a mansabdar in lieu of cash salary for military and administrative service under the mansabdari system, not specifically in lieu of judicial and police duties. The second half of the statement is closer to the mark, since zamindars held hereditary revenue rights and were principally revenue intermediaries, but the jagirdar half misdescribes the institution, so the statement fails as a whole.
• Statement 2 is incorrect and in fact inverts the true position. Jagirs were expressly non-hereditary and transferable, and Akbar's practice of frequent transfer of jagirs was designed precisely to prevent a jagirdar from striking local roots. Zamindari rights, by contrast, were heritable and saleable proprietary rights in the soil. Since both statements fail, the official answer (d) follows. The governing principle, and the cleanest elimination route in the exam hall, is that jagir equals assignment of revenue in lieu of service and is therefore temporary and transferable, whereas zamindari equals a hereditary proprietary right. A candidate who holds that single contrast can see that statement 2 is reversed and reach (d) without needing to adjudicate statement 1 in detail.

• Option (c) is incorrect. Land reforms in India were not associated with any shift to cash crops as the predominant form of cultivation; the shift in cropping pattern that did occur came from the Green Revolution and from price incentives, not from tenancy or ceiling legislation.
• Option (d) is plainly incorrect. Ceiling laws in every State carried extensive exemptions, covering plantations of tea, coffee and rubber, orchards, sugarcane farms of sugar factories, cooperative and religious institutions and land held by charitable trusts. These exemptions are the standard explanation for why ceiling surplus actually redistributed was so small.
• Option (a) is the option that gives the item its difficulty. The original State ceiling laws of the late 1950s and 1960s were framed on individual holdings, and it was only after the national guidelines of 1972 that the unit of application was shifted to the family. Stated as a blanket proposition about land reforms as a whole, (a) is therefore not correct, since it describes only the post 1972 position.
• Option (b) is the official answer. Redistribution of ceiling surplus land to the landless, alongside abolition of intermediaries and tenancy reform, was among the declared objectives of land reform from the First Five Year Plan onwards, and land to the tiller was the stated animating aim.

• Statement 1 is correct. The Charter Act of 1813 threw open the India trade to all British merchants subject to licence, while reserving to the Company its monopoly of the China trade and of the trade in tea. This partial opening is the single most examined feature of the Act and reflects the pressure of British industrial interests after the Industrial Revolution.
• Statement 2 is correct. The Act for the first time expressly asserted the sovereignty of the British Crown over the territorial possessions held by the Company in India, resolving the constitutional ambiguity left by earlier Acts.
• Statement 3 is incorrect. Parliamentary control over Indian revenues was not established in 1813. The Company continued to administer Indian revenues, and the Act in fact required the Company to keep its territorial and commercial accounts separate and to set aside one lakh of rupees annually for education, which is the well known corollary provision. Full accountability of Indian finance to the British Parliament came only with the assumption of direct Crown rule in 1858. Since statements 1 and 2 hold and statement 3 fails, the official answer (a) follows. The clean elimination route is the education grant clause, which is remembered alongside the separation of accounts and signals that finance remained a Company matter in 1813.

• Statement 1 is correct. The Swadeshi Movement launched after the partition of Bengal in 1905 gave a direct impetus to indigenous enterprise and craft, producing swadeshi textile mills, soap and match factories, tanneries, handloom weaving revival, the Bengal Chemical and Pharmaceutical Works of P. C. Ray and a range of small artisan enterprises. Whatever its commercial limitations, revival of indigenous crafts and industries is precisely what the boycott half of the boycott and swadeshi programme was intended to achieve.
• Statement 2 is correct. The National Council of Education was founded in August 1906 as part of the movement's programme of national education, and the Bengal National College under Aurobindo Ghosh was its most prominent institution. Since both statements hold, the official answer (c) follows. The governing frame is that the Swadeshi Movement operated on four planks, namely boycott, swadeshi enterprise, national education and samitis, and both statements test one plank each.

• Pair 1 is correct. The All India Anti-Untouchability League was founded in 1932 in the aftermath of the Poona Pact, with Gandhi as its moving force and Ghanshyam Das Birla as president and Amritlal Thakkar as secretary; it was renamed the Harijan Sevak Sangh the following year.
• Pair 2 is correct. The All India Kisan Sabha was founded at Lucknow in 1936 and Swami Sahajanand Saraswati, the Bihar peasant leader, was its first president.
• Pair 3 is correct. The Self-Respect Movement was launched in 1925 in the Madras Presidency by E. V. Ramaswami Naicker, Periyar, as a rationalist and anti-Brahminical movement. Since all three pairs hold, the official answer (d) follows. There is no elimination route here, which is what keeps a very familiar set of associations from being trivial, but each pairing is standard textbook content and a candidate confident of any two can infer the third from the option structure, since no option offers exactly two of these three in the combination that would arise from doubting pair 1.

• Option (a) is correct. Vishti was unpaid labour exacted by the state from the rural population, and in Gupta period sources it is treated as a fiscal claim on the subject alongside bhaga and bhoga, that is, as a form of tax rendered in labour rather than in kind or coin. It was a resource of the state and was frequently transferred to donees along with land grants, which is precisely why it appears in the grant charters.
• Option (b) is incorrect. The epigraphic evidence points the other way. Vishti is attested in central India and in the Kathiawar region, and the Gupta and post Gupta land grants of western and central India are among the principal sources for its existence.
• Option (c) is incorrect and is self contradictory. Labour that carries a wage entitlement is not forced labour; the defining feature of vishti is that it was unremunerated.
• Option (d) is incorrect. There is no evidence of any rule designating the eldest son as the person liable; the obligation fell on the village or the household generally and was levied as required. The elimination route runs through option (c), whose internal contradiction is visible without any Gupta specific knowledge, and then through the implausibility of the absolute claim in (b).

• Statement 1 is correct. Amil was the officer in charge of revenue collection at the local level under the Delhi Sultanate, working under the diwan i wizarat, and the term continued in use into the Mughal period.
• Statement 2 is incorrect. The iqta was not indigenous or ancient. It was a West Asian institution of assignment of revenue in lieu of service, developed under the Abbasids and the Seljuqs and brought into India by Iltutmish, who is credited with organising the iqta system here.
• Statement 3 is incorrect. Mir Bakshi was a Mughal office, the head of the military department responsible for the mansabdari muster, recruitment and payment, and it took shape under Akbar. Under the Khaljis the corresponding military establishment was headed by the ariz i mumalik, an office that Alauddin Khalji used vigorously for the branding of horses and descriptive rolls of soldiers. Since only statement 1 holds, the official answer (a) follows. The reliable elimination is statement 3, since a candidate who associates Mir Bakshi with the Mughal mansabdari system can discard options (c) and (d) immediately, and statement 2 then decides between (a) and (b).

• Statement 1 is incorrect. Nimbarka, the Vaishnava acharya who founded the Dvaitadvaita or dualistic non dualism school and the Nimbarka sampradaya centred on Radha and Krishna, belongs to the thirteenth century and possibly earlier, several centuries before Akbar, who ruled from 1556 to 1605.
• Statement 2 is incorrect on straightforward chronology. Kabir belongs to the fifteenth century and died around 1518, whereas Shaikh Ahmad Sirhindi, the Naqshbandi divine known as Mujaddid Alf i Sani, lived from 1564 to 1624 and was a contemporary of Akbar and Jahangir. A figure born some forty six years after Kabir's death cannot have influenced him. Since both statements fail, the official answer (d) follows. The governing principle is that chronology alone settles this item. Sirhindi is firmly fixed by his opposition to Akbar's religious policy and his correspondence in Jahangir's reign, so placing him after Kabir requires no knowledge of doctrine, and the four acharyas of the Vaishnava sampradayas, namely Ramanuja, Madhva, Nimbarka and Vallabha, all belong to the early medieval and medieval centuries rather than to the Mughal era.

• Statement 1 is correct. Gandhi's campaign against the export of Indian indentured labour, carried on from his South African years and pressed in India after 1915, was central to the abolition of the system, which the Government of India ended in 1917.
• Statement 2 is incorrect and reverses what happened. At the Delhi War Conference convened by Lord Chelmsford in April 1918 Gandhi supported the recruitment resolution, speaking briefly in its favour, and he then went on to campaign actively as a recruiting agent in Kheda, conduct that puzzled many of his followers and that he defended on the ground that Indians should earn the rights of citizenship of the Empire.
• Statement 3 is correct. Following the breach of the salt law at Dandi in April 1930 and the mass Civil Disobedience that followed, the colonial government declared the Congress an unlawful organisation and carried out mass arrests, including of Gandhi himself. Since statements 1 and 3 hold and statement 2 fails, the official answer (b) follows.
• Statement 2 is the whole question, and the elimination route is the recollection that Gandhi was a recruiting sergeant in 1918, an uncomfortable fact that is precisely why the examiner chose it.

• Pair 1 is correct. Tej Bahadur Sapru, the constitutional lawyer who left the Congress after the Nagpur session and became the leading Moderate voice at the Round Table Conferences and the author of the Sapru Committee report of 1945, presided over the All India Liberal Federation, the body formed by the Moderates in 1918 after the split with the Congress.
• Pair 2 is correct. Kshitish Chandra Neogy was a member of the Constituent Assembly, served in the interim and first union cabinets, and was subsequently appointed chairman of the First Finance Commission in 1951, which is the association through which he is most often encountered.
• Pair 3 is correct. Puran Chand Joshi was General Secretary of the Communist Party of India from 1935 to 1947 and was the party's dominant figure through the People's War line and the wartime years. Since all three pairs hold, the official answer (d) follows. There is no elimination route, and pair 2 in particular sits outside standard textbook coverage unless a candidate carries the First Finance Commission chairmanship, which is why this is a difficult item despite its familiar format.

The question asks which statement is not correct.

• Option (b) is correct as a statement of fact. Tansen composed dhrupads on Hindu deities, including compositions on Shiva and on Krishna, and dhrupad remained a devotional form even at the Mughal court.
• Option (c) is correct. He composed songs in praise of his patrons, both Raja Ramchandra Singh of Rewa and Akbar, and court panegyric in musical form was ordinary practice.
• Option (d) is correct. Tansen is credited with a number of ragas, among them Miyan ki Malhar, Miyan ki Todi, Darbari Kanada and Miyan ka Sarang, and the prefix Miyan in these names records the attribution.
• Option (a) is the statement that fails, and is therefore the answer. The title conferred by Akbar was Miyan, which is why he is known as Mian Tansen. The name Tansen itself is generally traced to his earlier years and to the patronage of Raja Vikramjit of Gwalior, not to Akbar. The item turns entirely on separating the honorific Miyan from the name Tansen, and the very form of the name Mian Tansen used in the stem is the internal clue.

On 21 June the Sun is vertically overhead at the Tropic of Cancer, the northern hemisphere summer solstice. The circle of illumination is then tangential to the Arctic and Antarctic Circles in such a way that the entire area north of the Arctic Circle receives continuous daylight and the entire area south of the Antarctic Circle receives continuous darkness.

• Option (a) is therefore correct, since at the Arctic Circle the Sun grazes the horizon at midnight without setting.
• Option (b) is wrong for the opposite reason, since the Antarctic Circle is then in polar night and the corresponding statement about it holds on 22 December, not 21 June.
• Option (c) is wrong because the Sun is overhead at the Equator only at the equinoxes, on about 21 March and 23 September.
• Option (d) is wrong because the Sun is overhead at the Tropic of Capricorn on about 22 December, the winter solstice. The governing principle is the annual migration of the vertical rays between the two tropics, and every option is generated by displacing that fact to the wrong date or the wrong hemisphere.

The New World means the Americas and the Old World means Eurasia and Africa. Tobacco was domesticated in the Americas, cocoa in Mesoamerica and the Amazon basin, and rubber, Hevea brasiliensis, in the Amazon, so all three in option (a) are New World domesticates carried east after 1492, which makes (a) correct.

• Option (b) fails on cotton, which has both New World and Old World domestications, the Old World species Gossypium arboreum and Gossypium herbaceum having been cultivated in the Indus valley and in Africa long before contact, so cotton cannot be presented as a New World introduction into the Old World.
• Option (c) fails twice, since coffee was domesticated in Ethiopia and Yemen and sugarcane in New Guinea and Southeast Asia, both Old World.
• Option (d) fails on coffee and on wheat, wheat being the founder crop of the Fertile Crescent. The elimination route is quick for a prepared candidate, since coffee and wheat are unambiguously Old World and remove options (c) and (d), and the residual decision between (a) and (b) rests on cotton alone.

• Statement 1 is correct. The Asiatic lion, Panthera leo persica, survives in the wild only in the Gir landscape of Gujarat, its former range across West and Central Asia having been extinguished, so India is the sole natural home.
• Statement 2 is incorrect. The double humped or Bactrian camel, Camelus bactrianus, occurs in Nubra in Ladakh in India but its natural range is Central Asia, including Mongolia, China, Kazakhstan and neighbouring states, where the wild Bactrian camel also persists; India holds a small and peripheral population, not an exclusive one.
• Statement 3 is incorrect. The greater one horned rhinoceros, Rhinoceros unicornis, occurs naturally in India, principally in Assam and North Bengal, and also in the Terai of Nepal, notably Chitwan, so it is not confined to India. Since only statement 1 holds, the official answer (a) follows. The governing principle is to separate the species India shares with its neighbours from the one it does not, and the rhinoceros and Nepal association is the standard discriminator.

• Pair 1 is correct. Pandharpur in Solapur district of Maharashtra, the seat of the Vithoba temple and the destination of the Varkari pilgrimage, stands on the Bhima, which is locally called the Chandrabhaga at Pandharpur because of the crescent shape of its bend there.
• Pair 2 is correct. Tiruchirappalli in Tamil Nadu stands on the Cauvery, at the point where the river divides around Srirangam island between the Cauvery and the Coleroon.
• Pair 3 is incorrect. Hampi, the Vijayanagara capital in Karnataka, stands on the Tungabhadra. The Malaprabha is a different Krishna tributary and is associated with Aihole, Badami and Pattadakal, the early Chalukyan sites. Since pairs 1 and 2 hold and pair 3 fails, the official answer (a) follows. The elimination route is Hampi and the Tungabhadra, which is standard knowledge and removes options (b), (c) and (d) at a stroke, so the item is decided by one fact even though it appears to demand three.

The official poverty line in India is defined as a level of monthly per capita consumption expenditure sufficient to buy a specified basket of goods and services. Since the same physical basket costs different amounts in different States, the money value of the line must differ, and separate rural and urban lines are computed for each State using State specific price data.

• Option (b) is therefore correct.
• Option (a) inverts cause and effect. The poverty rate is the proportion of the population falling below the line and is therefore an output of the exercise, not an input into where the line is drawn, so it cannot explain the line.
• Option (c) is wrong because the poverty line is anchored to consumption requirements, not to State income, and a poorer State does not on that account get a lower line.
• Option (d) is wrong because the quality of public distribution affects the welfare a household derives from a given expenditure but does not enter the computation of the line itself. The governing principle is that the poverty line is a constant real basket expressed in varying nominal terms, which makes prices the only admissible source of interstate variation among the four options.

Both techniques named in the stem are climate intervention or geoengineering proposals aimed at the planetary radiation balance, so (d) is correct. Stratospheric sulphate aerosol injection is a solar radiation management proposal that seeks to mimic the cooling that follows a large volcanic eruption, the Mount Pinatubo eruption of 1991 having lowered global mean surface temperature by roughly half a degree Celsius through exactly this mechanism, by scattering incoming shortwave radiation back to space. Cirrus cloud thinning works on the other side of the energy budget, since thin high cirrus is largely transparent to incoming shortwave radiation but traps outgoing longwave radiation, so seeding cirrus to reduce its coverage or lifetime would allow more terrestrial radiation to escape.

• Option (a) is wrong because artificial rain uses cloud seeding of warm or supercooled tropospheric clouds with silver iodide, sodium chloride or dry ice, an entirely different operation on a different cloud type at a different altitude.
• Option (b) is wrong because no mainstream proposal uses stratospheric aerosols against cyclones; the speculative cyclone proposals concern sea surface cooling.
• Option (c) is wrong because solar wind is a stream of charged particles deflected by the magnetosphere and is unaffected by aerosols in the stratosphere. The governing principle is that the stratosphere is the wrong place for any weather intervention, since weather is a tropospheric phenomenon, so the mention of stratospheric injection alone points to a radiative rather than a meteorological objective.

Both terms name thermal treatment routes for municipal and industrial solid waste, so (d) is correct. Pyrolysis is thermal decomposition of organic matter in the near absence of oxygen at moderate temperatures, yielding syngas, pyrolysis oil and char. Plasma gasification passes waste through an electrically generated plasma arc at several thousand degrees Celsius, breaking molecular bonds to give syngas and a vitrified inert slag, and is valued because it destroys dioxins and furans and handles hazardous and mixed waste streams.

• Option (a) is wrong because rare earth extraction proceeds by solvent extraction and ion exchange from monazite or bastnasite concentrates, a hydrometallurgical route.
• Option (b) is wrong because natural gas extraction uses drilling, hydraulic fracturing and horizontal drilling, none of which are thermal decomposition processes.
• Option (c) is wrong because hydrogen fuel vehicles rest on fuel cells and on hydrogen storage, and although hydrogen can be produced by gasification, the terms are not mentioned in the context of the automobile. The governing clue is the word gasification, which signals conversion of a solid feedstock into a gas, and the only option in which a solid feedstock is involved is waste.

The Agasthyamala Biosphere Reserve lies at the southern extremity of the Western Ghats, straddling the Kerala and Tamil Nadu border around the Agasthyamala peak, and comprises Neyyar, Peppara and Shendurney Wildlife Sanctuaries on the Kerala side together with the Kalakad Mundanthurai Tiger Reserve on the Tamil Nadu side, so (a) is correct.

• Option (b) names the constituents of the Nilgiri Biosphere Reserve, the first biosphere reserve declared in India, which lies at the Nilgiri triple junction far to the north, so it is wrong.
• Option (c) mixes Andhra Pradesh sanctuaries, Kaundinya in Chittoor and Gundla Brahmeswaram in the Nallamalas and Papikonda in the Eastern Ghats, with Mukurthi in the Nilgiris, a combination that belongs to no single reserve and is wrong.
• Option (d) names Telangana and Andhra Pradesh protected areas of the Eastern Ghats and the Nallamala hills, well outside the Western Ghats, so it is wrong. The elimination route is geographical rather than encyclopaedic. A candidate who knows only that Agasthyamala lies at the southern tip of the Western Ghats can discard (c) and (d) as Eastern Ghats clusters and discard (b) as the Nilgiri set, reaching the answer without knowing the four constituent units by name.

• Statement 1 is correct. The green sea turtle, Chelonia mydas, is herbivorous as an adult and grazes on seagrass and algae, and several freshwater and terrestrial chelonians are likewise plant feeders.
• Statement 2 is correct. Numerous reef fishes are herbivores, parrotfish and surgeonfish being the standard examples, and their grazing on algae is what keeps coral reefs from being overgrown.
• Statement 3 is correct. The sirenians, that is the dugong and the manatees, are marine mammals and are obligate herbivores feeding on seagrass, the dugong of the Gulf of Mannar and the Andaman waters being India's own example.
• Statement 4 is correct. Viviparity is widespread among snakes, sea snakes and vipers including the Russell's viper and the saw scaled viper giving birth to live young rather than laying eggs. Since all four hold, the official answer (d) follows. The item is easy because each statement is hedged by the word some, so a single counterexample validates it, and the dugong is sufficiently well known to carry statement 3, which is the only one a candidate is likely to hesitate over.

• Pair 1 is correct. The blue finned mahseer, Tor khudree, is native to the Cauvery and the rivers of the Deccan, and the Cauvery mahseer is the subject of a long running conservation and angling debate.
• Pair 2 is incorrect. The Irrawaddy dolphin, Orcaella brevirostris, is a coastal and brackish water species whose Indian population is concentrated in Chilika Lake in Odisha, the largest known lagoon population in the world, and it also occurs in the Sundarbans. The river of the Chambal is the habitat of the Gangetic dolphin, Platanista gangetica, along with the gharial and the red crowned roofed turtle, which is what makes the National Chambal Sanctuary significant.
• Pair 3 is correct. The rusty spotted cat, Prionailurus rubiginosus, one of the smallest wild cats in the world, occurs across peninsular India including the Eastern Ghats, with records from Andhra Pradesh, Odisha and the Nallamalas. Since pairs 1 and 3 hold and pair 2 fails, the official answer (c) follows. The single decisive fact is the Irrawaddy dolphin and Chilika association, which is standard preparation and which, once held, points directly to (c), the only option that excludes pair 2 while retaining the others.

Microbeads are manufactured solid plastic particles under five millimetres, typically of polyethylene or polypropylene, used as exfoliants and abrasives in face washes, scrubs, toothpastes and some cleaning products. Being small, buoyant and non biodegradable, they pass through conventional sewage treatment plants unretained and reach rivers and the sea, where they are ingested by zooplankton, fish and filter feeders, enter the food chain and act as carriers for adsorbed persistent organic pollutants.

• Option (a) therefore states the concern correctly.
• Option (b) is wrong because microbeads are not implicated in skin cancer; they are a physical abrasive and the health concern attaches to ingestion through the food chain, not to dermal carcinogenesis.
• Option (c) is wrong because uptake of intact plastic particles by crop plants through the root system is not the recognised pathway, and microbeads are a marine and freshwater pollution problem rather than an agronomic one.
• Option (d) is wrong because microbeads are cosmetic ingredients and are not used as food adulterants. The governing principle is that the entire microplastics concern is an aquatic food chain concern, so the option naming marine ecosystems is the only one aligned with the established pathway.

The Himalayan nettle, Girardinia diversifolia, locally known as bhimal or kandali in the western Himalaya and allo in Nepal, yields a long, strong bast fibre from its stem that has been spun and woven traditionally in the Himalayan belt and has attracted recent attention as a sustainable natural textile, so (d) is correct. The plant grows wild without cultivation inputs, is perennial and regenerates after harvest, which is why the word sustainable appears in the stem.

• Option (a) is wrong because the anti malarial associations are with Cinchona, the source of quinine, and Artemisia annua, the source of artemisinin, neither of which is a nettle.
• Option (b) is wrong because biodiesel feedstocks in the Indian context are oilseed bearing species such as Jatropha curcas, Pongamia pinnata and used cooking oil, and a nettle yields no oil bearing seed of consequence.
• Option (c) is wrong because paper pulp comes principally from bamboo, eucalyptus, subabul and agricultural residues, and nettle is not a pulp species. The clue lies in the botany, since a nettle is a herbaceous stem plant of the family Urticaceae, and stem plants of that kind are historically fibre plants, ramie being the closest commercial parallel.

• Statement 1 is correct. Chlorophyll absorbs strongly in the red and reflects strongly in the near infrared, and this contrast is exactly what vegetation indices such as NDVI exploit; chlorophyll concentration in both terrestrial vegetation and ocean phytoplankton is a routine remote sensing product.
• Statement 3 is correct. Land surface temperature is retrieved from the thermal infrared bands carried by sensors such as Landsat TIRS and MODIS, and urban heat island mapping rests on it.
• Statement 2 is the statement that gives the item its difficulty, and it is also correct. Methane emissions from rice paddies are estimated by remote sensing, though indirectly, by mapping flooded paddy extent and cropping calendar from optical and synthetic aperture radar data and combining that with emission factors in a model, while atmospheric methane column concentrations are separately retrieved by instruments such as SCIAMACHY, GOSAT and later TROPOMI. Since all three hold, the official answer (d) follows. The governing principle is that remote sensing measures reflected and emitted electromagnetic radiation across the spectrum, and once a candidate accepts that thermal and infrared bands are available alongside the visible, the only reason to doubt statement 2 is an unstated assumption that estimation must mean direct measurement.

On the figures current when the paper was set, forest cover as a percentage of geographical area stood at roughly sixteen and a half per cent for Maharashtra, about twenty five per cent for Madhya Pradesh, about thirty three per cent for Odisha and about forty one per cent for Chhattisgarh. The correct ascending order is therefore Maharashtra, Madhya Pradesh, Odisha, Chhattisgarh, that is 3-2-4-1, so (c) is correct.

• Options (a) and (b) both begin with Madhya Pradesh, which is wrong because Madhya Pradesh leads on absolute forest area but not on proportion, its very large geographical area diluting the percentage; this confusion between area and share is precisely the trap the question is built on.
• Option (d) has the first two States right but reverses the last two, placing Chhattisgarh below Odisha, whereas Chhattisgarh has the highest proportion of the four. The elimination route needs only two facts. Recognising that Maharashtra, with its large Deccan plateau of dry cultivated and degraded land, has the lowest share removes (a) and (b), and recognising that Chhattisgarh, dominated by the Bastar and Surguja forest belts, has the highest share then decides between (c) and (d).

• Statement 1 is correct. Methane hydrate, or methane clathrate, is stable only within a narrow window of low temperature and high pressure, so warming of permafrost and of bottom waters shifts conditions outside that window and can destabilise the deposits, which is the basis of the clathrate gun hypothesis and of concern about a positive feedback in the Arctic.
• Statement 2 is correct. The two great reservoirs are the permafrost of the Arctic tundra and the continental margin sediments beneath the seafloor, the latter holding the far larger share, and India's own prospecting in the Krishna Godavari basin belongs to this second category.
• Statement 3 is correct. Atmospheric methane has a perturbation lifetime of roughly nine to twelve years, being removed principally by reaction with the hydroxyl radical in the troposphere and ending as carbon dioxide and water, which is exactly why methane is described as a short lived climate pollutant with high potency but limited persistence. Since all three hold, the official answer (d) follows. The governing principle is the pressure and temperature stability field of the hydrate, which explains both where the deposits occur and why warming threatens them, and holding that single idea validates statements 1 and 2 together.

• Pair 1 is correct. Albania faces the Adriatic Sea on its western coast, north of the Strait of Otranto, along with Italy, Slovenia, Croatia, Bosnia and Herzegovina and Montenegro.
• Pair 2 is incorrect. Croatia is an Adriatic country, not a Black Sea one. The Black Sea is bordered by Turkey, Bulgaria, Romania, Ukraine, Russia and Georgia.
• Pair 3 is correct. Kazakhstan holds the long northern and north eastern shore of the Caspian, one of its five littoral states along with Russia, Azerbaijan, Iran and Turkmenistan.
• Pair 4 is correct. Morocco has a Mediterranean coast on its north, facing Spain across the Strait of Gibraltar, in addition to its longer Atlantic coast.
• Pair 5 is incorrect. Syria borders the Mediterranean, not the Red Sea, whose littoral states are Egypt, Sudan, Eritrea, Djibouti, Saudi Arabia, Yemen, Israel and Jordan. Since pairs 1, 3 and 4 hold, the official answer (b) follows. The elimination is efficient. Recognising that Syria has no Red Sea coast removes options (c) and (d) at once, and recognising Croatia as an Adriatic state removes (a), leaving (b) without any need to adjudicate the Caspian or Moroccan pairs.

India has been the world's largest exporter of rice by volume through the period referred to, having overtaken Thailand in 2012, with basmati exports to West Asia and non basmati exports to Africa and neighbouring Asian countries together carrying the volume, so (b) is correct.

• Option (a) is wrong and inverts the position, since China is the world's largest producer and also the largest consumer of rice, and its domestic demand leaves it a net importer rather than a leading exporter; production leadership and export leadership are different things and the question is built on that distinction.
• Option (c) is wrong because Myanmar, though historically the great rice exporter of colonial Burma, exports at a fraction of Indian volumes today.
• Option (d) is wrong because Vietnam is a substantial exporter and has ranked second or third, but not first, over this period. The governing principle is that export surplus depends on production net of domestic consumption, so the largest producer is not automatically the largest exporter, and that single idea disposes of the China option which is the only serious distractor.

• Pair 1 is correct. The Yamunotri glacier lies on the Bandarpunch massif in Uttarkashi district and feeds the Yamuna.
• Pair 2 is correct. The Bara Shigri glacier in the Lahaul valley of Himachal Pradesh drains to the Chandra, which joins the Bhaga at Tandi to form the Chandrabhaga or Chenab.
• Pair 3 is incorrect. The Milam glacier in the Pithoragarh district of Kumaon feeds the Goriganga, a tributary of the Kali or Sharda. The Mandakini rises from the Chorabari glacier near Kedarnath, which is the association the pair displaces.
• Pair 4 is correct. The Siachen glacier in the eastern Karakoram feeds the Nubra, a tributary of the Shyok and thus of the Indus.
• Pair 5 is incorrect. The Zemu glacier in Sikkim, on the eastern flank of Kangchenjunga, feeds the Teesta. The Manas rises in Bhutan and Tibet and is a Brahmaputra tributary, unconnected to Zemu. Since pairs 1, 2 and 4 hold, the official answer (a) follows. The reliable elimination is Zemu and the Teesta, which is standard and removes options (c) and (d), after which the Milam pairing alone decides between (a) and (b).

All four named compounds are agricultural pesticides, so (a) is correct. Methyl parathion, phorate and triazophos are organophosphates and carbofuran is a carbamate, and all four act as cholinesterase inhibitors, which is exactly why their use is viewed with apprehension; they are acutely toxic to humans and to non target organisms including birds and pollinators, several are classified as extremely hazardous by the World Health Organization, and the Anupam Verma Committee recommended review or phasing out of a number of them in India.

• Option (b) is wrong because food preservatives are compounds such as sodium benzoate, potassium sorbate, sulphites and nitrites, chemically unrelated to these.
• Option (c) is wrong because the fruit ripening agent that attracts regulatory concern in India is calcium carbide, which releases acetylene, alongside the permitted use of ethylene.
• Option (d) is wrong because cosmetic humectants are glycerine, propylene glycol and hyaluronic acid. The naming convention itself is the guide, since the phos and thion elements in these names signal organophosphorus compounds, a family associated with insecticides and nerve agents rather than with food or cosmetics.

• Statement 1 is incorrect. The Ramsar Convention obliges a contracting party to designate at least one wetland for the List of Wetlands of International Importance and to promote wise use of wetlands within its territory. It creates no mandatory obligation to protect and conserve every wetland in the country, and the word all is what makes the statement fail.
• Statement 3 is correct. The 2010 Rules expressly extended the regulated area to the zone of influence, that is the drainage area or catchment of the wetland as determined by the authority, which was one of their notable features since it recognised that a wetland cannot be protected in isolation from what drains into it.
• Statement 2 is the statement the key rejects. The 2010 Rules were framed by the Central Government in exercise of powers under the Environment (Protection) Act, 1986, and the key treats them as an exercise of domestic statutory power rather than as an implementation of Ramsar recommendations. Since only statement 3 survives, the official answer (c) follows. The elimination route is the absolute word all in statement 1, which removes options (a) and (d) immediately and reduces the question to whether statement 2 stands.

• Statement 1 is correct. Nitrogenous fertiliser applied to agricultural soils is processed by soil microbes through nitrification and denitrification, and these pathways release nitrous oxide and nitric oxide; agricultural soils are the single largest anthropogenic source of nitrous oxide, a greenhouse gas of very high global warming potential that also depletes stratospheric ozone.
• Statement 2 is correct. Urea in cattle urine and dung is hydrolysed by urease to ammonia, which volatilises, and livestock is globally the dominant source of atmospheric ammonia; the ammonia so released contributes to the formation of secondary particulate matter and to nitrogen deposition on downwind ecosystems.
• Statement 3 is correct. Poultry litter is nitrogen rich and releases ammonia and other reactive nitrogen species, and intensive poultry operations are recognised nitrogen hotspots. Since all three hold, the official answer (d) follows. The governing concept is reactive nitrogen, that is every form of nitrogen other than the inert dinitrogen of the atmosphere, and once a candidate holds that agriculture and livestock together dominate the human perturbation of the nitrogen cycle, all three statements follow from the same principle and no option offering a subset can be right.

All three are reservoirs behind dams, so (d) is correct. Aliyar is a reservoir in the Anaimalai foothills of Coimbatore district in Tamil Nadu, part of the Parambikulam Aliyar project. Isapur is a dam on the Penganga, a Godavari tributary, in Yavatmal district of Maharashtra. Kangsabati is a reservoir on the Kangsabati river in Bankura district of West Bengal, serving one of the largest irrigation commands in the State.

• Option (a) is wrong because India's uranium is associated with Jaduguda and the Singhbhum thrust belt in Jharkhand, Tummalapalle in Andhra Pradesh and Lambapur Peddagattu in Telangana, none of which are these.
• Option (b) is wrong because Indian tropical rain forest is confined to the Western Ghats, the north east and the Andamans as a contiguous biome, and three scattered locations across Tamil Nadu, Maharashtra and West Bengal cannot share it.
• Option (c) is wrong because India's notable cave systems are the Meghalaya limestone caves, Borra in Andhra Pradesh and Belum in Kurnool. The elimination route is the geographical spread itself, since the three names lie in three widely separated States with nothing geological or ecological in common, which leaves an engineered feature, and among the four options only a reservoir is engineered.

• Statement 1 is incorrect, and the error lies in the word elimination. Blending hydrogen with compressed natural gas improves combustion because hydrogen has a wide flammability range, a high flame speed and no carbon atom, so carbon monoxide emissions fall substantially, by the order of half in trial results. They do not vanish, because the CNG fraction of the blend still contains carbon and still burns incompletely to some degree. A reduction is not an elimination.
• Statement 2 is correct. Since a portion of the carbon bearing fuel is replaced by hydrogen and the remaining fuel burns more completely, both carbon dioxide and unburnt hydrocarbon emissions fall.
• Statement 3 is correct. The technically and commercially favoured blend is around eighteen to twenty per cent hydrogen by volume, that is up to one fifth, beyond which combustion stability, engine knock and material compatibility become limiting.
• Statement 4 is incorrect. Hydrogen production and blending add cost, so H-CNG is more expensive than CNG, not less; the case for it rests on emissions and on efficiency, not on price. Since statements 2 and 3 hold, the official answer (b) follows. The governing discipline is to read absolute words carefully, since elimination in statement 1 and the price claim in statement 4 are both overstatements of true underlying effects.

Dew forms when a surface loses heat by outgoing longwave radiation during the night, cools below the dew point temperature of the adjacent air, and water vapour condenses directly on it. The condition for dew is therefore rapid nocturnal radiative cooling, which requires a clear sky, calm air and high relative humidity. On a cloudy night the outgoing terrestrial radiation is intercepted by the cloud layer and returned downward, the surface does not cool to the dew point, and no dew forms.

• Option (b) states this and is the official answer.
• Option (c) is not merely wrong but inverted, since cloudy nights are warmer at the surface than clear nights, which is precisely why dew fails to form.
• Option (d) is wrong because clouds do not deflect wind to ground level, and although wind does inhibit dew by mixing the air near the surface, that is not a cloud effect.
• Option (a) is the real distractor and deserves a note, since clouds do absorb terrestrial longwave radiation. It is rejected because absorption alone, without re emission back towards the surface, would not keep the ground warm; the operative mechanism is the return of energy downward.

• Statement 1 is incorrect, and it inverts the historical record in a way that is worth holding precisely. It was the 39th Amendment of 1975, enacted during the Emergency in the aftermath of the Allahabad High Court judgment against Indira Gandhi, that inserted Article 329A to place the election of the Prime Minister and the Speaker beyond the reach of the courts. The Supreme Court struck down the relevant clause in Indira Nehru Gandhi versus Raj Narain as violating the basic structure. The 44th Amendment of 1978, enacted by the Janata government, did the opposite: it repealed Article 329A along with the other Emergency era provisions, restored safeguards on the proclamation of Emergency and removed the right to property from the Fundamental Rights.
• Statement 2 is correct. In the Supreme Court Advocates on Record Association case of 2015 the Court struck down the 99th Amendment and the National Judicial Appointments Commission Act as violative of the independence of the judiciary, a basic feature, and restored the collegium system. Since only statement 2 holds, the official answer (b) follows. The governing distinction is that the 39th Amendment was the assault on judicial review and the 44th was the restoration, and a candidate who fixes the 44th Amendment as the corrective, undoing amendment can reject statement 1 without recalling Article 329A by number.

• Statement 1 is incorrect. Under the Judges (Inquiry) Act, 1968 the presiding officer of the House in which the motion is moved has the discretion to admit or refuse to admit it, and only on admission is an inquiry committee constituted. This discretion was exercised in April 2018 when the Chairman of the Rajya Sabha declined to admit the removal motion against the sitting Chief Justice, which is almost certainly why the examiner framed the statement.
• Statement 2 is incorrect. The Constitution uses the expressions proved misbehaviour and incapacity in Article 124(4) but nowhere defines them; the absence of definition is a standing criticism of the removal machinery.
• Statement 3 is correct. Article 124(5) empowers Parliament to regulate the procedure for investigation and proof, and the Judges (Inquiry) Act, 1968 is the statute enacted under it, laying down the admission of the motion, the three member inquiry committee and the framing of charges.
• Statement 4 is correct and reproduces the special majority of Article 124(4), namely a majority of the total membership of the House together with not less than two thirds of the members present and voting, required in each House in the same session. Since statements 3 and 4 hold, the official answer (c) follows. The item is difficult because there is no elimination route; each of the four statements must be judged independently.

• Statement 1 is correct. Nationalisation proceeded in two stages under Indira Gandhi, coking coal mines being taken over in 1971 and 1972 and non coking coal mines in 1973 under the Coal Mines (Nationalisation) Act, 1973, with Coal India Limited formed in 1975 as the holding company.
• Statement 2 is incorrect. Allocation by discretionary screening committee was held illegal and the allocations cancelled by the Supreme Court in 2014, after which the Coal Mines (Special Provisions) Act, 2015 and the Mines and Minerals (Development and Regulation) Amendment Act, 2015 established competitive auction and, for public sector entities, allotment. Lottery has never been the method.
• Statement 3 is incorrect. India remains among the largest coal importers in the world, importing coking coal for steel because domestic reserves are largely of poor coking quality, and thermal coal for coastal power stations designed for imported grades. Self sufficiency in coal is a policy target, not an achieved position. Since only statement 1 holds, the official answer (a) follows. The elimination route is quick, since the word lottery in statement 2 is implausible on its face for a mineral allocation regime, and the coal import position is common knowledge, so both distractors fall without specialist recall.

• Statement 1 is correct. Article 102(1)(a) disqualifies a member for holding an office of profit under the Union or a State other than an office declared by Parliament by law not to disqualify, and the Parliament (Prevention of Disqualification) Act, 1959 is that law, listing exempted offices including ministerial office, offices of certain committee chairpersons and a schedule of specified bodies.
• Statement 3 is incorrect. The Constitution uses the expression office of profit but nowhere defines it; the content has been supplied by judicial decisions, which look to whether the government makes the appointment, whether it can remove the holder, whether remuneration is paid and whether functions of government are performed. The absence of a constitutional definition is the standing criticism, and it is what makes each fresh controversy turn on judicial tests.
• Statement 2 is a bare enumerative claim about the number of amendments to the 1959 Act, which the key accepts as correct. Since statements 1 and 2 hold, the official answer (a) follows. In the exam hall the item is decided on statement 3 alone, since a candidate who knows the term is undefined can discard options (b), (c) and (d) without any view on the amendment count.

The Fifth Schedule governs the administration of Scheduled Areas and Scheduled Tribes in States other than the four north eastern States covered by the Sixth Schedule. Under it the Governor may by regulation prohibit or restrict the transfer of land by or among members of Scheduled Tribes in a Scheduled Area, and it was on this foundation that the Supreme Court in the Samatha case of 1997 held that the transfer of tribal land in Scheduled Areas of Andhra Pradesh to private mining companies was void, reading government land, forest land and tribal land in Scheduled Areas as barred from lease to non tribals.

• Option (b) is therefore correct.
• Option (a) is wrong because the Third Schedule contains only the forms of oath and affirmation for constitutional functionaries.
• Option (c) is wrong because the Ninth Schedule is the repository of laws protected from Fundamental Rights challenge under Article 31B, a protection device unrelated to land transfer in tribal areas.
• Option (d) is wrong because the Twelfth Schedule lists the eighteen functional items for municipalities under Article 243W. The governing anchor is the pairing of the Fifth Schedule with Scheduled Areas and the Sixth with the autonomous districts of the north east, and every tribal land and self governance question in Prelims turns on holding that pair.

• Statement 1 is correct. PVTGs are distributed across eighteen States and the Union Territory of the Andaman and Nicobar Islands, where the Great Andamanese, Onge, Jarawa, Sentinelese and Shompen are all notified.
• Statement 2 is correct. The Dhebar Commission criteria, carried forward by the Government of India, are a pre agricultural level of technology, a stagnant or declining population, extremely low literacy and a subsistence level of economy, and the demographic criterion is the one the statement names.
• Statement 3 is incorrect and is the eliminator. The number of PVTGs officially notified is seventy five, not ninety five, a figure that has been stable since the category was renamed from Primitive Tribal Groups in 2006.
• Statement 4 is correct. The Irular of Tamil Nadu and Kerala and the Konda Reddi of Andhra Pradesh and Telangana both appear in the list. Since statements 1, 2 and 4 hold, the official answer (c) follows. The elimination route is efficient, since the single fact that there are seventy five PVTGs removes options (a), (b) and (d) at once and leaves (c) without any need to test the remaining three statements.

Article 142 empowers the Supreme Court to pass any decree or order necessary for doing complete justice in any cause or matter pending before it. The proposition in the stem is that ordinary statutory law cannot cut down this constitutional power, and the only option that restates that proposition is (b), which says the Court is not constrained in the exercise of its powers by laws made by Parliament.

• Option (a) is wrong because it concerns the Election Commission, a different body altogether, and in any case the Commission's decisions are amenable to judicial review; nothing in Article 142 confers immunity on anyone.
• Option (c) is wrong because a Financial Emergency under Article 360 is proclaimed by the President on the aid and advice of the Council of Ministers, and Article 142 has no bearing on executive emergency powers.
• Option (d) is wrong because it describes the federal legislative scheme under Articles 246 to 254, which is unrelated to the Supreme Court's remedial jurisdiction. The item requires no external recall at all. It is a comprehension question in which the stem states a principle and the candidate must identify its restatement, and the discipline it tests is reading the stem for its subject, which is the Supreme Court and no other institution.

• Statement 1 is correct. Article 176 requires the Governor to address the Legislative Assembly, or where there are two Houses both Houses assembled together, at the commencement of the first session after each general election and at the commencement of the first session of each year, and to inform the Legislature of the causes of its summons. This is the State counterpart of the President's address under Article 87.
• Statement 2 is accepted by the key as correct. Article 208 empowers each House of a State Legislature to make rules regulating its procedure and the conduct of its business, and where no rule exists on a matter the settled practice is for the House to follow the corresponding Lok Sabha rule, the Speaker applying it by analogy. Since both statements hold, the official answer (c) follows. The reliable half of the question is statement 1, which rests directly on constitutional text, and a candidate confident of Article 176 is left choosing between (a) and (c) on statement 2 alone.

• Statements 1 and 3 are a straight swap of attributes between the two conventions, which is the architecture of the question.
• Statement 1 is incorrect because the Protocol against the Smuggling of Migrants by Land, Sea and Air is one of the three Palermo Protocols supplementing UNTOC, the other two dealing with trafficking in persons and with the illicit manufacture of firearms; UNCAC has no protocols at all.
• Statement 3 is incorrect for the mirror reason, because the dedicated chapter on asset recovery, described in the convention itself as a fundamental principle, belongs to UNCAC and not to UNTOC.
• Statement 2 is correct. UNCAC, adopted in 2003 and in force from 2005, is the first legally binding global anti corruption instrument, earlier efforts having been regional such as the OECD Anti Bribery Convention or non binding.
• Statement 4 is correct. UNODC is the custodian and secretariat for both conventions and services their Conferences of States Parties. Since statements 2 and 4 hold, the official answer (c) follows. The governing insight is that UNCAC deals with corruption and asset recovery while UNTOC deals with organised crime and carries the protocols, and once a candidate holds that split, the swap in statements 1 and 3 is visible without further knowledge.

• Statement 1 is incorrect, and the error is precisely located. The Indian Forest (Amendment) Act, 2017 removed bamboo from the definition of tree in section 2(7) of the Indian Forest Act, 1927 only in respect of bamboo grown in non forest areas, so that farmers could fell, transit and sell bamboo grown on their own land without felling and transit permits. Bamboo grown in forest areas continues to be treated as a tree and remains subject to the regulatory regime of the Act, so the amendment conferred no right to fell bamboo on forest areas.
• Statement 2 is correct. Section 2(i) of the Forest Rights Act, 2006 defines minor forest produce to include all non timber forest produce of plant origin, and bamboo, brushwood, stumps, cane, tussar, cocoons, honey, wax, lac, tendu leaves, medicinal plants and herbs are named expressly.
• Statement 3 is correct. Section 3(1)(c) of the same Act vests the right of ownership, access to collect, use and dispose of minor forest produce in forest dwelling Scheduled Tribes and other traditional forest dwellers. Since statements 2 and 3 hold, the official answer (b) follows. The item turns entirely on the forest and non forest distinction in the 2017 amendment, which is exactly the qualification most secondary reporting of that amendment omitted.

The right to marry a person of one's choice has been located by the Supreme Court within Article 21, as an element of the right to life and personal liberty read to include personal autonomy, dignity and the freedom to make intimate choices, so (b) is correct. The 2018 decisions in Shakti Vahini, dealing with khap panchayats and honour crimes, and Shafin Jahan, setting aside the annulment of an adult woman's marriage, both said so expressly, and Navtej Singh Johar in the same year extended the reasoning.

• Option (a) is wrong; Article 19 protects speech, assembly, association, movement, residence and profession, and marriage is not among the enumerated freedoms, though it is the most plausible distractor because association is superficially close.
• Option (c) is wrong because Article 25 protects freedom of conscience and free profession, practice and propagation of religion, which is adjacent in inter faith marriage disputes but is not the source of the right.
• Option (d) is wrong because Article 29 protects the cultural and educational rights of minorities to conserve a distinct language, script or culture. The governing principle is that Article 21 has become the residual reservoir of unenumerated personal rights, so a right of personal autonomy not expressly listed elsewhere will almost always be found there.

• Statement 1 is incorrect. Section 3(j) of the Patents Act, 1970 excludes from patentability plants and animals in whole or any part thereof other than micro organisms, including seeds, varieties and species, and essentially biological processes for the production or propagation of plants and animals. A biological process to create a seed therefore falls squarely within the exclusion.
• Statement 2 is incorrect as of the date of the paper. The Intellectual Property Appellate Board was constituted in 2003 under the Trade Marks Act, 1999 and heard appeals in trade mark, patent, geographical indication and later copyright matters, and it was functioning in 2019.
• Statement 3 is correct, and it is the corollary of statement 1. Plant varieties are not patentable in India; they are protected instead by a sui generis regime under the Protection of Plant Varieties and Farmers' Rights Act, 2001, which India enacted to meet its TRIPS Article 27.3(b) obligation while preserving farmers' rights to save, use, sow and exchange seed. Since only statement 3 holds, the official answer (c) follows. The governing principle is the sui generis route, which explains both why plant varieties are excluded from patenting and where their protection actually lives.

• Statement 2 is correct and rests directly on statutory text. Section 3(2)(iv) of the Environment (Protection) Act, 1986 empowers the Central Government to lay down standards for emission or discharge of environmental pollutants from various sources, and section 6 read with the Environment (Protection) Rules, 1986 carries those standards, which is why the Act is the parent of almost the whole body of Indian environmental standard setting.
• Statement 1 is treated by the key as incorrect. The powers enumerated in section 3(2) concern coordination, planning, standard setting, restriction of areas, procedures and safeguards for accident prevention and hazardous substance handling, inspection, laboratories and information collection. Public participation is not among the enumerated powers of the Act itself. Since only statement 2 holds, the official answer (b) follows. The reliable route in the exam hall is that statement 2 is the single most characteristic power of the 1986 Act, so a candidate confident of it is reduced to a choice between (b) and (c), and the absolute framing of statement 1 as a statutory requirement is what should raise doubt.

• Option (a) is incorrect. The Rules require segregation at source into three streams, namely biodegradable or wet waste, non biodegradable or dry waste comprising plastic, paper, metal and glass, and domestic hazardous waste such as diapers, napkins, mosquito repellents, cleaning agents and discarded batteries. Three, not five.
• Option (b) is incorrect, and the word only is what defeats it. The 2016 Rules deliberately widened the ambit beyond the 2000 Rules, which had applied to municipal areas alone, to cover urban agglomerations, census towns, notified areas, notified industrial townships, areas under the control of Indian Railways, airports, airbases, ports and harbours, defence establishments, special economic zones, State and Central government organisations, places of pilgrimage and religious and historical importance.
• Option (d) is incorrect. No such inter district prohibition exists; the Rules in fact contemplate common regional facilities serving more than one local body.
• Option (c) is the official answer. Schedule I of the Rules lays down detailed specifications for landfill site selection, covering distance from habitation, rivers, ponds, highways, airports, water supply wells and critical habitats, along with liner, leachate and monitoring requirements. The elimination route is strong here, since the three streams of segregation and the deliberate widening of scope are both standard, so two options fall on recall and a third on implausibility.

• Statement 1 is correct. Fixed term employment allows an employer to hire a workman directly for a stated period on a written contract that lapses on expiry without any act of termination. Because non renewal at the end of the term is not retrenchment, the notice, compensation and, in larger establishments, prior government permission requirements of Chapter VB of the Industrial Disputes Act do not bite. The employer's exit becomes easier, which is precisely why industry pressed for the change and why trade unions opposed it, and the 2018 notification extended the facility from the apparel and made ups sectors, where it had been introduced in 2016, to all sectors.
• Statement 2 is correct. The Model Standing Orders provide that no temporary workman, whether monthly rated, weekly rated or piece rated, and no probationer or badli, shall be entitled to any notice or pay in lieu of notice if his services are terminated, the protection being reserved for permanent workmen. Since both statements hold, the official answer (c) follows. The item is difficult because it rests on subordinate legislation that no standard textbook carries, and the only route to it is the underlying logic that fixed term employment is an exit flexibility instrument, from which statement 1 follows by reasoning rather than recall.

The Service Area Approach was introduced by the Reserve Bank of India in 1989 as a refinement of the Lead Bank Scheme, so (b) is correct. Under it each rural and semi urban bank branch was allotted a specific cluster of villages as its service area, for which it carried responsibility for credit planning and for meeting the credit needs of that area, the object being to end the overlapping and the gaps that unstructured branch coverage had produced. The Lead Bank Scheme itself, following the Gadgil Study Group and the Nariman Committee, had assigned each district to a lead bank charged with coordinating credit and development, so the Service Area Approach is best understood as the village level extension of that district level design.

• Option (a) is wrong because the Integrated Rural Development Programme was a self employment and asset creation programme of 1978, later subsumed into the Swarnajayanti Gram Swarozgar Yojana.
• Option (c) is wrong because MGNREGS is a wage employment guarantee of 2005, unconnected to branch level credit planning.
• Option (d) is wrong because the National Skill Development Mission concerns training and certification. The governing association is that anything involving allotment of geographical territory to a bank branch belongs to the Lead Bank family.

• Statement 1 is correct. Section 3(e) of the Mines and Minerals (Development and Regulation) Act, 1957 defines minor minerals to include building stones, gravel, ordinary clay, ordinary sand other than sand used for prescribed purposes, and limestone used for lime burning, along with any other mineral the Central Government may by notification declare a minor mineral.
• Statement 2 is incorrect, and it is the statement the question is built on. Section 15 of the same Act empowers State Governments, not the Central Government, to make rules for regulating the grant of quarry leases, mining leases and other mineral concessions in respect of minor minerals and for purposes connected therewith. The Centre's rule making power under section 13 covers major minerals. Both the grant of leases and the framing of rules for minor minerals therefore rest with the States, so the statement is right on its first half and wrong on its second.
• Statement 3 is correct and follows from section 23C, which expressly empowers State Governments to frame rules for preventing illegal mining, transportation and storage of minerals. Since statements 1 and 3 hold, the official answer (a) follows. The governing principle is the scheme of the Act, under which major minerals are a central subject and minor minerals are devolved wholesale to the States.

• Statement 1 is incorrect. The larger share of India's external debt is non government debt, that is commercial borrowings by corporates, non resident Indian deposits with banks, short term trade credit and borrowings by financial institutions. Sovereign or government external debt, consisting largely of multilateral and bilateral concessional loans from the World Bank group, the Asian Development Bank, Japan and others, is the smaller component, typically around a fifth of the total.
• Statement 2 is incorrect. Although the US dollar is the dominant currency of denomination, accounting for roughly half of the stock, the remainder is spread across the Indian rupee, which is itself a substantial share through rupee denominated instruments and non resident deposits, the special drawing right, the yen and the euro. Since both statements fail, the official answer (d) follows. The discipline this item rewards is suspicion of absolutes. The word all in statement 2 makes it false almost on inspection, since no large economy borrows in a single currency, and that alone reduces the question to statement 1 and eliminates options (b) and (c).

The Sarkaria Commission, appointed in 1983 to examine Centre State relations and reporting in 1988, laid down the qualifications now conventionally cited for the office of Governor: an eminent person in some walk of life, a person from outside the State, a detached figure without intense political links or at least one who has not taken part in politics in the recent past, and a person who has not been too intimately connected with the local politics of the State.

• Option (c) is therefore correct.
• Option (a) is wrong; the First Administrative Reforms Commission of 1966 dealt with administrative machinery, personnel administration and the machinery for planning, and its Centre State work did not produce this formulation.
• Option (b) is wrong; the Rajamannar Committee was appointed by the Tamil Nadu government and recommended far more radical measures, including abolition of the Inter State Council in its then form, deletion of Articles 356, 357 and 365 and the transfer of residuary powers to the States, and it is remembered as a State autonomy document rather than as a Governor's qualifications document.
• Option (d) is wrong; the Venkatachaliah Commission of 2000 endorsed and elaborated the Sarkaria criteria and recommended a committee based selection process, but it followed rather than originated them. The governing anchor is that Sarkaria is the reference point for the Governor's office and Punchhi for the later refinements.

Participatory notes, commonly called P notes or offshore derivative instruments, are issued by registered foreign portfolio investors to overseas clients who wish exposure to Indian securities without themselves registering with the Securities and Exchange Board of India, so (d) is correct. The registered FPI buys the underlying Indian security and issues a derivative instrument referencing it to the offshore client, who receives the economic return. The regulatory anxiety attaching to them concerns opacity of beneficial ownership and the possibility of round tripping of unaccounted money, which is why SEBI has progressively tightened know your customer, eligibility and fee requirements and why outstanding P note values have fallen sharply.

• Option (a) is wrong because a certificate of deposit is a negotiable money market instrument issued by a bank against funds deposited with it.
• Option (b) is wrong because commercial paper is an unsecured short term money market instrument issued by corporates to meet working capital needs.
• Option (c) is wrong because a promissory note is a generic written promise to pay and is not an offshore market access instrument. The governing distinction is that the first three are money market debt instruments issued domestically, while the question describes an equity market access route for an offshore investor.

• Statement 1 is correct. The Compensatory Afforestation Fund Act, 2016 gave statutory form to arrangements that had until then rested on Supreme Court orders, establishing a National Compensatory Afforestation Fund under the public account of India and a State Fund under the public account of each State, and creating a National Authority and a State Authority to manage them, with ninety per cent of the money flowing to the States and ten per cent retained at the Centre. The two tier structure is therefore express in the statute.
• Statement 2 is incorrect. The Act and the Rules made under it set out the permissible uses of the fund, covering compensatory afforestation, catchment area treatment, assisted natural regeneration, wildlife management, forest fire prevention, soil and moisture conservation and the like, and they prescribe the planning and monitoring machinery, but they do not make people's participation mandatory. The absence of any required role for gram sabhas and forest rights holders was in fact the principal criticism levelled at the Act, since afforestation under it frequently occurs on land over which communities hold or claim rights under the Forest Rights Act, 2006. Since only statement 1 holds, the official answer (a) follows. The reliable discipline is scepticism towards the word mandatory, which in Indian environmental statutes is far rarer than commentary suggests.

Independent sectoral regulators such as TRAI, IRDAI and the electricity regulatory commissions are statutory bodies created by Parliament, and it is Parliament that holds them to account.

• Item 2 qualifies. The Department Related Standing Committees examine the demands for grants, bills and the annual reports and working of the ministries and of the bodies under them, and regulators fall within that remit.
• Item 1 qualifies. Parliament may constitute ad hoc committees, including select and joint committees and committees of inquiry, to examine a specific matter, and such committees have examined regulators and regulatory failures.
• Item 3 does not qualify. The Finance Commission is a constitutional body under Article 280 whose function is to recommend the distribution of tax proceeds between the Union and the States and the principles of grants in aid; it has no oversight role over regulators.
• Item 4 does not qualify. The Financial Sector Legislative Reforms Commission, chaired by Justice B. N. Srikrishna and reporting in 2013, was a one time expert commission asked to rewrite the legal architecture of the financial sector, and it produced the draft Indian Financial Code; it was not a standing review mechanism and no longer exists.
• Item 5 does not qualify. NITI Aayog is an executive think tank without oversight authority over statutory regulators. Since items 1 and 2 hold, the official answer (a) follows. The organising principle is that a body created by statute is answerable to the legislature that created it, not to executive or advisory bodies.

• Statement 1 is correct. The Second Plan, built on the Mahalanobis two sector and later four sector model and given political form by the Industrial Policy Resolution of 1956, deliberately privileged heavy and basic industry, machine building and capital goods in the public sector, on the argument that a domestic capital goods base was the precondition for sustained growth and for reducing dependence on imported machinery.
• Statement 2 is correct. The Fourth Plan, running from 1969, adopted growth with stability and progressive achievement of self reliance, and it expressly took up the correction of the concentration of wealth and economic power, the same concern that produced bank nationalisation in 1969 and the Monopolies and Restrictive Trade Practices Act of 1969.
• Statement 3 is incorrect. The financial sector was brought in as an integral part of the Plan for the first time in the Eighth Plan, from 1992, which was the Plan of structural adjustment and of the reorientation of the economy after the 1991 crisis. The Fifth Plan is remembered for Garibi Hatao, for the objectives of removal of poverty and attainment of self reliance, and for being terminated a year early in 1978. Since statements 1 and 2 hold, the official answer (a) follows. The item is difficult because it requires each Plan to be independently anchored, but statement 3 is the practicable route, since a candidate who associates the financial sector with the post reform Plans rather than with the mid seventies can eliminate options (c) and (d).

• Statement 1 is correct. The AIIB opened in January 2016 with fifty seven founding members and its membership had grown well past eighty, approaching a hundred approved members, by the time the paper was set.
• Statement 2 is incorrect. China is by a wide margin the largest shareholder, holding roughly a quarter to a third of the subscribed capital and a voting share that carries a veto over major decisions requiring a supermajority. India is the second largest shareholder, and also the largest single borrower from the Bank, which is the fact the statement distorts.
• Statement 3 is incorrect. Membership is open to members of the International Bank for Reconstruction and Development and the Asian Development Bank, and the AIIB has a large non regional membership including the United Kingdom, Germany, France, Italy, Australia, Canada and Brazil; the distinction the Bank draws is between regional and non regional members, with regional members holding at least seventy five per cent of voting power. Since only statement 1 holds, the official answer (a) follows. The elimination route is direct. India's position as second shareholder and largest borrower is standard preparation, and the presence of European members is well known from the political controversy over their joining, so statements 2 and 3 fall without difficulty and only statement 1 requires a number.

The Inter Creditor Agreement was signed in July 2018 by public and private sector banks and financial institutions as part of Project Sashakt, the framework recommended by the Sunil Mehta Committee for resolving non performing assets. Its object was to speed up resolution of stressed accounts of rupees fifty crore and above held under consortium or multiple banking arrangements, by binding the participating lenders to a common process in which a lead bank prepares a resolution plan and a decision approved by lenders holding sixty six per cent of the outstanding debt binds all signatories, with dissenting lenders given a buyout option.

• Option (d) states this and is correct.
• Option (a) is wrong because an agreement among lenders about stressed corporate loans has no bearing on the government's fiscal or current account balances.
• Option (b) is wrong because the agreement is a resolution mechanism for bad loans already made, not a financing vehicle for new government infrastructure.
• Option (c) is wrong on the face of it, since a body constituted by the lenders themselves cannot be an independent regulator, and in any case loan sanction regulation rests with the Reserve Bank of India. The governing idea is that the obstacle to resolution under consortium lending was the need for unanimity among lenders, and the agreement was designed to replace unanimity with a qualified majority.

The Banks Board Bureau was constituted in 2016, on the recommendation of the P. J. Nayak Committee on bank governance, as an autonomous body to recommend the appointment of whole time directors and non executive chairpersons of public sector banks and financial institutions, and to advise on governance and on strategies for raising capital.

• Option (a) is therefore correct for the period of the paper.
• Option (b) is wrong because the Reserve Bank regulates and supervises banks and prescribes fit and proper criteria, but it does not select the heads of public sector banks.
• Option (c) is wrong in that the Union Ministry of Finance, as the owner, issues the formal appointment on the basis of the Bureau's recommendation and the Appointments Committee of the Cabinet's approval, but the selection function was moved out of the ministry precisely to insulate it, which was the whole point of creating the Bureau.
• Option (d) is wrong because a bank's own management cannot select its chairman. The reform logic worth carrying is that the Bureau was the first step in a wider Nayak Committee design that also contemplated a bank investment company holding the government's stake, a step that was never taken.

• Statement 1 is incorrect. The PNGRB was constituted in 2006 under the Petroleum and Natural Gas Regulatory Board Act of that year, long after several other regulators, among them the Securities and Exchange Board of India given statutory status in 1992, the Telecom Regulatory Authority of India in 1997, the Insurance Regulatory and Development Authority in 1999 and the Central Electricity Regulatory Commission in 1998. It is neither the first regulator nor close to it.
• Statement 2 is correct. The Act charges the Board with protecting the interests of consumers and entities, ensuring uninterrupted and adequate supply of petroleum, petroleum products and natural gas in all parts of the country, and promoting competitive markets, and the authorisation of city gas distribution networks and the regulation of common carrier pipeline access are the instruments through which it does so.
• Statement 3 is correct. Appeals against orders of the Board lie to the Appellate Tribunal for Electricity, which was constituted under the Electricity Act, 2003 and has been given appellate jurisdiction over the petroleum and gas regulator as well, an arrangement that avoids proliferating tribunals across the energy sector. Since statements 2 and 3 hold, the official answer (b) follows.
• Statement 1 is the eliminator and is disposed of by any one earlier regulator, which removes options (a), (c) and (d) at a stroke.

• Statement 1 is incorrect. LTE is marketed as 4G, not 3G, and VoLTE is marketed as advanced 4G or as HD voice. The 3G designation belongs to the earlier UMTS and CDMA2000 family, and the generational label is exactly what the statement gets wrong.
• Statement 2 is incorrect on its second half. LTE in its native form is indeed an all internet protocol, packet switched, data only bearer, which is why early LTE networks had to fall back to a legacy circuit switched network to carry a voice call, the technique known as circuit switched fallback. VoLTE is the solution to that problem: it carries voice as packets over the same LTE data bearer using the IP Multimedia Subsystem, with quality of service priority assigned to the voice packets. VoLTE is therefore voice over a data network, not a voice only technology, and a VoLTE capable network continues to carry data simultaneously, which is precisely its advantage over circuit switched fallback. Since both statements fail, the official answer (d) follows. The governing insight is that VoLTE is not a different generation or a different network from LTE at all; it is a service delivered over LTE, so any statement that opposes the two as separate technologies is suspect on its face.

• Statement 1 is incorrect. The 2017 amendment raised paid maternity leave from twelve weeks to twenty six weeks, of which not more than eight weeks may be taken before the expected date of delivery. The entitlement is therefore not a symmetrical three months before and three months after; the statute is deliberately weighted towards the post natal period, and the pre natal cap of eight weeks is the specific figure the statement misses.
• Statement 2 is incorrect. The Act requires every establishment with fifty or more employees to provide a creche facility and to allow the mother four visits a day to the creche, including her rest intervals, not six.
• Statement 3 is correct. The twenty six week entitlement applies to a woman with fewer than two surviving children. A woman who already has two or more children is entitled to twelve weeks only, of which not more than six may be taken before delivery, so entitlements are indeed reduced. Since only statement 3 holds, the official answer (c) follows. The item is decided by numbers rather than by principle, but statement 1 is the practical route, since the twenty six week figure is well known and is not divisible into two equal three month halves.

Extended producer responsibility is the principle that a producer's responsibility for a product extends to the management of that product once it becomes waste, obliging the producer to arrange collection, channelisation and environmentally sound disposal or recycling. It entered Indian law through the e-Waste (Management and Handling) Rules, 2011, which for the first time placed a statutory collection and channelisation obligation on producers of electrical and electronic equipment, so (c) is correct. The principle was later carried into the Plastic Waste Management Rules, 2016 and the Battery Waste Management Rules, but 2011 is its point of entry.

• Option (a) is wrong because the Bio-medical Waste Rules place duties on the occupier of a health care facility, that is the generator, and on the operator of a common treatment facility, not on the producer of the item.
• Option (b) is wrong because the Recycled Plastic Rules of 1999 dealt with thickness specifications, permissible use of recycled plastic for food contact and marking requirements, and imposed no take back obligation.
• Option (d) is wrong because food safety regulation concerns standards, labelling and licensing, not post consumer waste. The organising idea is that extended producer responsibility shifts the burden from the generator or the municipality to the manufacturer, and only one of the four instruments does that.

The economic cost of food grains to the Food Corporation of India is built up in three layers. The first is the pool purchase price, that is the minimum support price together with any State bonus. The second is procurement incidentals, which cover mandi labour, market fees, State taxes, commission to societies, gunny bags, forwarding charges and internal transport up to the depot. The third is distribution cost, covering freight from the surplus State to the consuming State, handling, storage, interest, administrative overheads and losses in transit and storage.

• Option (c) names the second and third layers correctly and is the official answer.
• Option (a) is wrong because transportation is only one element of distribution cost and cannot stand for the whole.
• Option (b) is wrong for the same reason, interest being one element of carrying cost.
• Option (d) is wrong because it substitutes godown charges for the whole of distribution cost, omitting freight, which is the largest single element for a country that moves grain from Punjab, Haryana and Madhya Pradesh to consuming States a thousand kilometres away. The governing principle is that economic cost is the full cost of delivering grain to the point of issue, so any option that names a single line item is incomplete by construction, and this alone identifies (c) without recall of the accounting heads.

Social capital refers to the stock of trust, shared norms, reciprocity and networks of association in a society that allow people to cooperate and to act collectively at low transaction cost. It is a relational rather than a material or individual asset, and Putnam's work on civic association is its standard reference.

• Option (d) names exactly that and is correct. The other three options are each a different form of capital, which is what makes the question a clean test of the concept rather than of recall.
• Option (a) describes human capital, the stock of education, skill and health embodied in individuals.
• Option (b) describes physical or produced capital, the stock of buildings, infrastructure and machinery.
• Option (c) describes neither capital nor a stock of quality but a demographic magnitude, the working age population, which is the basis of the dependency ratio and of the demographic dividend argument. The governing distinction is where the asset resides. Human capital resides in the individual, physical capital in objects, and social capital in the relationships between people, which is why trust and harmony rather than literacy or infrastructure is the answer.

• Statement 1 is incorrect. High Courts exercise the power of judicial review under Article 226 and, on the constitutional validity of legislation, as courts of record within the ordinary hierarchy, and they may and regularly do declare a central law unconstitutional. Such a declaration is subject to appeal to the Supreme Court, but the jurisdiction itself is not denied to them. The power of judicial review of legislation is itself part of the basic structure, so it could not be taken away from the High Courts even by amendment, as the Court held when striking down the attempt to exclude High Court jurisdiction over tribunals in Chandra Kumar.
• Statement 2 is incorrect. Constitutional amendments are open to challenge before the Supreme Court on the ground that they violate the basic structure of the Constitution, the doctrine laid down in Kesavananda Bharati in 1973 and applied since to strike down amendments in Indira Nehru Gandhi, Minerva Mills, Chandra Kumar, Coelho and the 99th Amendment case. Since both statements fail, the official answer (d) follows. The organising principle is that judicial review in India extends to ordinary legislation, to executive action and to constitutional amendments themselves, and a candidate who holds that three fold reach will reject both statements without needing case names.

• Statement 1 is correct and states the method exactly. A purchasing power parity exchange rate is the rate at which the currency of one country would have to be converted into that of another to buy the same basket of goods and services in both, and it is computed by price surveys of comparable items across countries under the International Comparison Program coordinated by the World Bank. It is used because market exchange rates understate the real income of low income countries, where non traded goods and services are cheap.
• Statement 2 is incorrect, and the error is the confusion of the two measures. In purchasing power parity terms India is the third largest economy in the world, behind China and the United States, a position it has held for some years. It is in nominal market exchange rate terms that India ranks around fifth to seventh, jostling with the United Kingdom and France. The statement takes the nominal rank and attaches it to the PPP measure. Since only statement 1 holds, the official answer (a) follows. The discipline this item rewards is holding both rankings separately, since the entire question is the difference between them, and a candidate who carries only one number will be caught whichever number it is.

• Statement 1 is correct. Rice occupies the largest area of any kharif crop in India, of the order of forty million hectares, and it is also the largest single crop by area in the country taken across seasons.
• Statement 2 is incorrect. Kharif oilseeds, dominated by soyabean and groundnut with sesamum, castor and sunflower alongside, occupy roughly eighteen to nineteen million hectares, whereas kharif jowar occupies only about two to three million hectares, jowar having declined steeply over decades as coarse cereals lost area to oilseeds and to rice. The comparison is not close.
• Statement 3 is correct. Cotton occupies of the order of twelve million hectares against about five million hectares for sugarcane, a ratio of well over two to one.
• Statement 4 is incorrect. Area under sugarcane has fluctuated with the price cycle and with arrears of cane payment, rising and falling, and has not steadily decreased; the word steadily is what defeats it. Since statements 1 and 3 hold, the official answer (a) follows. The practicable route is the pair of absolute claims, since coarse cereals cannot outrank oilseeds in a country that is the world's largest importer of vegetable oil, and steady decline is a strong claim that agricultural area data rarely support.

Vegetable oils are by a wide margin India's largest agricultural import by value, so (d) is correct. India imports well over half of its edible oil consumption, principally palm oil from Indonesia and Malaysia and soyabean and sunflower oil from Argentina, Brazil, Ukraine and Russia, and the bill has run at the order of seventy to eighty thousand crore rupees a year, making edible oil one of the largest items in the entire import basket after crude petroleum, gold and electronics.

• Option (c) is the serious distractor, since pulses imports rose sharply in the deficit years around 2015 and 2016 and India is the world's largest importer of pulses, but even at their peak they were a fraction of the edible oil bill, and they fell steeply after the record domestic harvests and the imposition of quantitative restrictions and duties from 2017.
• Option (a) is wrong because India is a large net exporter of spices, not an importer of consequence.
• Option (b) is wrong because fresh fruit imports, chiefly apples, kiwi and exotic fruits, are small. The governing fact is the structural edible oil deficit, which is the one large and persistent gap in Indian agricultural self sufficiency and which no policy has closed.

The question asks for the most appropriate definition, so all four options are to be weighed rather than three simply rejected.

• Option (c) is the crudest formulation and is rejected first: liberty as licence, doing whatever one likes, is self defeating, since unlimited freedom for each destroys freedom for all, and no serious theorist has defended it.
• Option (b), absence of restraint, is the classical negative conception associated with Hobbes and with the early liberal tradition, and it is a real definition, but it is purely privative; it tells us what liberty is free from and nothing about what it is for, and on it a person left alone in destitution is fully at liberty.
• Option (a), protection against the tyranny of political rulers, describes a historically important condition of liberty and the object of much constitutional design, but it is narrower still, since it identifies only one source of unfreedom and ignores social, economic and customary constraint.
• Option (d) is the positive or developmental conception, associated with T. H. Green, Harold Laski and in the Indian context with the framers' emphasis on liberty alongside equality and fraternity, and it is the official answer. On this view liberty is the presence of conditions in which a person can realise their capacities fully, which subsumes the absence of restraint as a means rather than treating it as the whole. The governing principle is that a definition which explains the others is more appropriate than one the others explain.

A slide in the rupee is met by measures that either increase the supply of foreign exchange or reduce the demand for it, and three of the four options do one or the other.

• Option (a) works on the current account, since curbing non essential imports reduces the demand for foreign currency and promoting exports increases its supply.
• Option (b) works on the capital account in a particular way, since a masala bond is a rupee denominated bond sold to overseas investors, so the exchange rate risk is borne by the investor rather than the Indian borrower and the inflow adds to foreign exchange supply without adding to unhedged foreign currency liability.
• Option (c) also works on the capital account, since easing external commercial borrowing limits, maturities and end use restrictions brings in foreign currency inflows more readily.
• Option (d) is the answer, and it is the odd one out because it works in the wrong direction. An expansionary monetary policy lowers interest rates, which reduces the return on rupee assets and encourages capital outflow, and it raises inflation, which erodes external competitiveness and puts further downward pressure on the currency. The orthodox monetary response to a currency slide is tightening, not expansion. The governing principle is interest rate parity, since capital moves towards the higher yielding currency, and holding that single relation identifies (d) without recall of any specific measure.

• Statement 1 is correct and is the whole substance of the directive. The Reserve Bank's circular of April 2018 required all system providers to ensure that the entire data relating to payment systems operated by them is stored in a system only in India, covering the full end to end transaction details and the information collected, carried and processed as part of the message or payment instruction. Data on cross border transactions could be retained abroad in addition, but the domestic copy was mandatory, and the object was supervisory access unimpeded by foreign jurisdiction.
• Statement 2 is incorrect. Nothing in the directive touches ownership. Payment systems in India are operated by private companies, foreign card networks and bank consortia, and requiring public sector ownership would have been a structural change of an entirely different order, not a data storage instruction.
• Statement 3 is incorrect on both the addressee and the auditor. The system audit report was to be submitted to the Reserve Bank of India, and it was to be conducted by an auditor empanelled with the Indian Computer Emergency Response Team. The Comptroller and Auditor General audits the receipts and expenditure of government and of public sector bodies and has no role in supervising private payment system operators. Since only statement 1 holds, the official answer (a) follows.

The General Data Protection Regulation was adopted by the European Parliament and the Council in April 2016 and became applicable across the European Union on 25 May 2018, so (c) is correct. Its principal features are the requirement of a lawful basis for processing, consent that is freely given, specific, informed and unambiguous, the rights of access, rectification, erasure and portability, data protection by design and by default, mandatory breach notification within seventy two hours, extraterritorial application to any controller processing the data of persons in the Union, and penalties reaching four per cent of global annual turnover.

• Option (a) is wrong; Australia's regime is the Privacy Act, 1988 with the Australian Privacy Principles.
• Option (b) is wrong; Canada's federal private sector law is PIPEDA of 2000.
• Option (d) is wrong; the United States has no comprehensive federal data protection statute, relying instead on sectoral laws such as HIPAA and on State legislation, of which the California Consumer Privacy Act is the best known. The clue lies in the word Regulation, which in European Union law is a specific instrument directly applicable in all member States without national transposition, as distinct from a Directive, so the terminology itself identifies the jurisdiction.

The action plan was signed with Russia at the annual bilateral summit in New Delhi in October 2018, so (b) is correct. Its content was the sequencing of cooperation in the areas the two sides had already agreed, namely the remaining units at Kudankulam, the identification of a second site for Russian designed reactors, localisation of manufacture of components in India in line with the Make in India programme, cooperation in third countries beginning with the Rooppur project in Bangladesh, and collaboration in nuclear science, fuel cycle and small modular reactors. The wider context is that Russia is the only foreign partner with reactors actually operating and under construction in India, which is why an implementation road map with Russia and not with the others was both possible and necessary.

• Option (a) is wrong; the India Japan civil nuclear agreement was signed in 2016 and no project has followed from it.
• Option (c) is wrong; the United Kingdom has no reactor supply relationship with India.
• Option (d) is wrong; the India United States agreement of 2008 remains without a single constructed reactor, the Westinghouse proposal for Kovvada having stalled on the supplier's bankruptcy and on liability concerns. The item is difficult because the name of the instrument is not recognisable, and the only route to it is the reasoning that an implementation road map presupposes an existing construction programme.

The money multiplier is the ratio of the money supply to reserve money, and it measures how much deposit money the banking system creates on a given base. It varies inversely with the leakages from the deposit creation process, of which there are two: the reserves banks are required or choose to hold against deposits, and the currency the public chooses to hold outside the banking system.

• Option (b) is correct because a stronger banking habit means the public keeps a larger share of its money as bank deposits and a smaller share as cash in hand, so the currency leakage falls, more of each round of lending returns to the banking system as deposits, and the multiplier rises.
• Option (a) is wrong and works in the opposite direction, since a higher cash reserve ratio locks up a larger proportion of each deposit with the central bank and reduces the amount available for onward lending.
• Option (c) is wrong for the same reason; a higher statutory liquidity ratio compels banks to hold more of their deposits in prescribed securities, again reducing lendable resources.
• Option (d) is wrong because the multiplier is a ratio and is unaffected by the mere size of the population, which changes the absolute quantities on both sides without changing their proportion. The governing relation is that the multiplier is the reciprocal of the sum of the leakages, so anything that reduces a leakage raises it.

• Statements 1 and 2 are a straight interchange of the two definitions, and statements 3 and 4 state them correctly, which is the entire architecture of the question.
• Statement 1 is incorrect because the creation of a simulated environment that shuts out the physical world is virtual reality, not augmented reality.
• Statement 2 is incorrect for the mirror reason, because the projection of computer generated images onto real objects and surroundings is augmented reality, not virtual reality.
• Statement 3 is correct: augmented reality keeps the user in the real world and overlays information on it, typically through the camera of a phone, tablet or headset, Pokemon Go and camera based navigation and translation overlays being the familiar examples.
• Statement 4 is correct: virtual reality closes off the real world through a head mounted display and transposes the user into a wholly generated environment, aiming at complete immersion. Since statements 3 and 4 hold, the official answer (b) follows. The governing test is the single word augmented, which means added to something already there, so augmented reality must retain the real world and virtual reality must replace it. Holding the meaning of the word alone is sufficient, and no candidate needs to have used either technology.

Denisovans are an extinct group of archaic humans, a sister population to the Neanderthals, first identified in 2010 not from skeletal morphology but from DNA extracted from a finger bone and teeth found in Denisova Cave in the Altai mountains of Siberia, so (b) is correct. They are significant because the species was defined by genomics before it was described from anatomy, and because their genetic legacy survives in living people: Melanesians, Papuans and Aboriginal Australians carry several per cent of Denisovan ancestry, and the high altitude adaptation allele EPAS1 in Tibetans is of Denisovan origin, evidence of interbreeding with anatomically modern humans.

• Option (a) is wrong; the group is hominin and belongs to the late Pleistocene, tens of thousands rather than tens of millions of years ago.
• Option (c) is wrong, and is the deliberate trap for an Indian candidate, since Denisova Cave is in Siberia and the North East Indian cave associations are with the Meghalaya limestone systems, one of which gives its name to the Meghalayan Age.
• Option (d) is wrong for the same reason; the geological stage named from India is the Meghalayan, ratified in 2018, not anything Denisovan. The name itself is the guide, being a place name in the Altai, and the discipline is to resist the pull of the plausible Indian option.

• Option (b) is correct as a statement of fact. Artificial functional DNA has been synthesised in laboratories, from the chemical synthesis of a complete bacterial genome in the Mycoplasma work of the Venter group to the construction of synthetic gene circuits and of expanded genetic alphabets.
• Option (c) is correct, and describes something done routinely. The polymerase chain reaction replicates a defined stretch of DNA in a tube, outside any living cell, using a thermostable polymerase, primers and thermal cycling; cell free replication is ordinary laboratory practice.
• Option (d) is correct. Plant and animal cells are cultured and divided in petri dishes as a matter of routine, plant tissue culture and micropropagation on one side and mammalian cell culture on the other.
• Option (a) is the statement the key marks as not correct, and this is where the item is weak. Chromosomes assembled from DNA of more than one species are not beyond reach: yeast artificial chromosomes routinely carry large inserts of foreign DNA and function through mitosis, the Sc2.0 project has synthesised and substituted functional yeast chromosomes, and in 2018 two groups fused the sixteen yeast chromosomes into one and two respectively while retaining viability. A candidate can reach (a) only by elimination, having satisfied himself that the other three are unarguable.

• Statement 3 is correct and states what a digital signature is. The signer's private key is applied to a hash of the document, producing a value that anyone holding the corresponding public key can verify; verification establishes both that the signer's key was used and that the content has not been altered since signing, since any change to the document changes its hash and breaks the verification. Authentication and integrity together are the definition.
• Statement 1 is treated by the key as incorrect because it describes a different object. An electronic record that identifies the issuing certifying authority is a Digital Signature Certificate, the credential that binds a public key to an identity and carries the issuing authority's own signature. The certificate identifies the certifying authority; the signature does not.
• Statement 2 is the statement the key rejects with least justification. Since only statement 3 survives, the official answer (c) follows. The distinction the question is testing is between the signature, which is an operation performed on a document, and the certificate, which is a credential vouching for a key, and holding that distinction is the only reliable route through the item.

The significance of observing a black hole merger at cosmological distance is that the merger is detected through the gravitational waves it emits, so (b) is correct. General relativity predicts that accelerating masses radiate ripples in spacetime; the final inspiral and coalescence of two black holes is among the most powerful sources, and the passing wave produces a fractional change in length far smaller than a proton diameter, which the kilometre scale laser interferometers of LIGO and Virgo detect as a shift in the interference pattern between their perpendicular arms. The first detection, of a merger about 1.3 billion light years away, was announced in February 2016 and the Nobel Prize followed in 2017.

• Option (a) is wrong because the Higgs boson is a particle of the Standard Model detected at the Large Hadron Collider in 2012 through proton collisions, an entirely different physics and a laboratory rather than an astronomical observation.
• Option (c) is wrong because wormholes remain a theoretical solution of the field equations with no observational support whatever, and nothing in a merger observation bears on traversability.
• Option (d) is wrong because the singularity at the centre of a black hole is precisely what is not observed; the waveform carries information about the masses, spins and orbital dynamics outside the horizon, and the classical singularity remains outside the reach of both observation and current theory.

Cas9 is a CRISPR associated endonuclease, an enzyme that cuts double stranded DNA, so (a) is correct. In the CRISPR Cas9 system a guide RNA carrying a sequence complementary to the intended target directs the Cas9 protein to that site in the genome, where it cleaves both strands adjacent to a short protospacer adjacent motif. The cell's own repair machinery then either rejoins the ends imprecisely, disrupting the gene, or, if a template is supplied, repairs the break by homologous recombination, allowing a sequence to be inserted or corrected. The description as molecular scissors captures this cutting function, and the guide RNA is what makes the cutting targeted.

• Option (b) is wrong as stated, although it is the most interesting distractor, since Cas enzymes have since been adapted into diagnostic platforms; Cas9 itself is a nuclease, not a biosensor.
• Option (c) is wrong because Cas9 is a protein of bacterial adaptive immunity, not a plant pest resistance gene, that role belonging to Bt cry genes.
• Option (d) is wrong because Cas9 is not a herbicide; herbicide tolerance in genetically modified crops works by an altered target enzyme such as EPSPS in glyphosate tolerant lines. The governing point is that CRISPR supplies the address and Cas9 supplies the blade.

• Option (b) is the statement that is not correct, and it inverts the true position exactly. A safe and effective recombinant vaccine against hepatitis B has existed since the 1980s and is part of India's Universal Immunisation Programme, given at birth and in the pentavalent schedule. Hepatitis C has no vaccine, the virus's genetic diversity and rapid mutation having defeated development so far, though it has become curable with direct acting antivirals achieving cure rates above ninety five per cent. The statement therefore reverses which of the two has a vaccine.
• Option (a) is correct: hepatitis B is transmitted by blood, by sexual contact and from mother to child, the same routes as HIV, and it is considerably more infectious by those routes.
• Option (c) is correct: the global burden of chronic hepatitis B and C together is of the order of three hundred million people against roughly forty million living with HIV, several times more.
• Option (d) is correct and is the reason the disease is called silent; chronic infection may run for decades without symptoms and present only at the stage of cirrhosis or hepatocellular carcinoma, which is why screening rather than symptom based diagnosis is the public health strategy. The organising fact to carry is the asymmetry: hepatitis B has a vaccine but no cure, hepatitis C has a cure but no vaccine.