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Short entries on the news across the whole UPSC syllabus, each filed by topic and subtopic and marked for Prelims or Mains.

Latest digest: 1 to 14 September 2026, published Tuesday, 15 September 2026.

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5 items · all dates · Security

Full coverage of Security is coming soon. The items below touch on it.

Science and Technology › Defence technology

Also: Security › Forces and exercises

7 Sep 2026

Defence Acquisition Council clears proposals worth about ₹1.10 lakh crore

The Defence Acquisition Council, chaired by the Defence Minister, granted Acceptance of Necessity on 7 September to proposals worth about ₹1.10 lakh crore for the armed forces, about 98 per cent of it to come from Indian industry.

What was cleared

Army
  • CBRN (Chemical, Biological, Radiological and Nuclear) Recce Vehicles to detect and mark contaminated areas
  • Sarvatra Bridge System and Trawl Tanks for crossings
  • Advanced Light Helicopters
Navy
  • Arudhra Radars at naval air stations
  • Marine Gas Turbines for warship propulsion, to be designed and developed to cut dependence on foreign vendors
Air Force
  • Ground-Based Multi-Purpose Jammer against adversaries' radars
  • DEFSAC: smart cards based on Radio Frequency Identification (RFID) replacing paper identity cards and passes
From the PIB release, 7 September 2026

PrelimsMains

Environment › Species in news

Also: Security › Organised crime

8 Sep 2026Prelims focus

Five baby orangutans found abandoned in Odisha's Balasore district; trafficking probe under way

UPSC has asked

  • Prelims 2023: which animal makes a tool from a stick
  • Prelims 2015: the IUCN and CITES

Environment › Species in news

Also: Security › Organised crime

9 Sep 2026Prelims focus

DRI seizures of pangolin scales, star tortoises and tokay geckos, and how the law protects them

UPSC has asked

  • Prelims 2017: what Schedule I protection means for a tortoise
  • Prelims 2013: species found naturally in India, including the star tortoise

The news

  • DRI operations seized leopard pelts, live Indian star tortoises, tokay geckos, pangolin scales and tiger bones.
  • The Directorate of Revenue Intelligence works under the Central Board of Indirect Taxes and Customs, with the Wildlife Crime Control Bureau.

Protection status

Pangolin
  • Schedule I
  • CITES Appendix I since 2016
  • Indian Manis crassicaudata and Chinese Manis pentadactyla of the Northeast
  • Scales for traditional medicine
Indian star tortoise
  • Schedule I
  • CITES Appendix I since 2019
  • Geochelone elegans
  • Exotic pet trade
Tokay gecko
  • Schedule I
  • CITES Appendix II since 2019
  • Dried for traditional medicine, some pet demand
Schedule listings and trade uses from the PIB release of 9 September 2026; CITES listing years from the CITES appendices
  • Schedule I of the Wildlife (Protection) Act, 1972, which also lists leopards, gives the highest protection.

Prelims

Science and Technology › Defence technology

Also: Security › Forces and exercises

1 Sep 2026Prelims focus

INS Nipun, the Navy's second Nistar class diving support vessel, commissioned

Key facts

  • INS Nipun is the second Nistar class diving support vessel, after INS Nistar, both from Hindustan Shipyard Limited.
  • It supports saturation diving, and its hyperbaric lifeboat evacuates divers still under pressure.
  • It is mother ship to the Navy's Deep Submergence Rescue Vessel, which rescues the crew of a disabled submarine.

Prelims

Science and Technology › Computing and AI

Also: Security › Cyber security

3 Sep 2026Prelims focus

ASCII smuggling: how invisible Unicode characters hide text from filters and AI

The science

  • ASCII, the American Standard Code for Information Interchange, is a 7 bit code for 128 characters.
  • Unicode extends ASCII to the world's scripts, and its first 128 characters match ASCII.
  • Unicode's tag characters mirror ASCII but are nearly invisible, though software still reads them.

ASCII smuggling

  1. Spammer

    Hides tag characters inside a word such as funding

  2. Filter

    Reads fun and ding

  3. Reader

    Sees funding

From The Indian Express, 6 September 2026
  • It hides text in tag characters, first to slip instructions to AI agents in prompt injection attacks.

Prelims

Practice questions

3 Prelims questions, on the most important items above.

Prelims

  1. Q1

    In India's defence procurement, what does the grant of 'Acceptance of Necessity' by the Defence Acquisition Council signify?

    1. (a)A contract has been signed with the selected vendor.
    2. (b)The need for the item is accepted, and the purchase can move to requests for proposals, trials and price negotiation.
    3. (c)The equipment has cleared field trials and is ready for induction.
    4. (d)The full amount has been released to the armed forces from the defence budget.
    Show answer and explanation

    Acceptance of Necessity is the first formal step: it accepts the need, and requests for proposals, trials and price negotiation follow before any contract. So options a, c and d describe later stages or money not yet committed.

    From Defence Acquisition Council clears proposals worth about ₹1.10 lakh crore

  2. Q2

    Consider the following statements about orangutans:

    1. 1.They are found in the wild only in Borneo and Sumatra.
    2. 2.They are listed in Appendix I of CITES.
    3. 3.Of the three orangutan species, only the Tapanuli orangutan is Critically Endangered.

    Which of the statements given above are correct?

    1. (a)1 only
    2. (b)2 and 3 only
    3. (c)1 and 2 only
    4. (d)1, 2 and 3
    Show answer and explanation

    Statements 1 and 2 are correct. Statement 3 is wrong: the Bornean, Sumatran and Tapanuli orangutans are all Critically Endangered.

    From Five baby orangutans found abandoned in Odisha's Balasore district; trafficking probe under way

  3. Q3

    Consider the following statements:

    1. 1.The Indian star tortoise is listed in Schedule I of the Wildlife (Protection) Act, 1972.
    2. 2.The tokay gecko is listed in CITES Appendix I.
    3. 3.The Directorate of Revenue Intelligence works under the Central Board of Indirect Taxes and Customs.

    Which of the statements given above are correct?

    1. (a)1 and 3 only
    2. (b)2 and 3 only
    3. (c)1 and 2 only
    4. (d)1, 2 and 3
    Show answer and explanation

    Statements 1 and 3 are correct. Statement 2 is wrong: the tokay gecko is in CITES Appendix II, which allows trade with permits, while the pangolin and the star tortoise are in Appendix I.

    From DRI seizures of pangolin scales, star tortoises and tokay geckos, and how the law protects them

Full coverage coming soon