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Satellite and emerging communications
Satellite internet and emerging ways to communicate: satellite constellations and how their service is licensed and given spectrum, communication between vehicles, short range wireless, photonics and optical links. It serves GS3 answers on communications technology.
Showing 3 of 6 subjects, those that changed from 16 to 31 August 2026.Show all
Satellite internet
Ground segment
Copy link to Ground segmentPrelims and Mains
Only one part of a satellite internet service is in space. The rest is a dish at the user's end and a ground facility that puts the traffic onto the ordinary internet, and it is that ground half a government can actually reach.
- A user's dish sends a radio signal to a passing low Earth orbit satellite, which relays it to a satellite earth station gateway that hands it to the ordinary internet.
- No cable has to be laid to the user, which is why the service reaches homes that terrain or distance puts beyond a ground network.
What changed
GMPCS licence
Copy link to GMPCS licencePrelims and Mains
- GMPCS licence
- The Global Mobile Personal Communication by Satellite (GMPCS) licence, which the Department of Telecommunications grants to sell satellite based voice and data services in India.
- data localisation
- A requirement that data generated in India be stored on servers located within India.
Selling a satellite service in India takes two permissions rather than one, and the three operators that want to sell it hold both. What none of them has is clearance to switch the service on.
- Selling satellite voice and data in India needs a GMPCS licence from the Department of Telecommunications (DoT) and an authorisation from the Indian National Space Promotion and Authorisation Centre (IN-SPACe).
- Starlink, Eutelsat OneWeb and Jio Satellite Communications all hold both, and none has been cleared to begin service.
- The worry holding them is that a foreign operator could route Indian traffic through gateways outside India, leaving the government no hold over the service.
What changed
22 Aug 2026
22 Aug 2026
- DoT's guidelines require data localisation, gateways on Indian soil, a lawful blocking mechanism, restriction of services during hostilities, and separate security clearance for voice and data.
- An operator must reach 20 per cent indigenisation of its ground segment within five years of commercial service.
- User terminals must carry Navigation with Indian Constellation (NavIC) positioning by 2029.
Satellite spectrum assignment
Copy link to Satellite spectrum assignmentPrelims and Mains
Spectrum is the one input a satellite operator in India cannot bid for. The Telecommunications Act, 2023 settled that, which is why a satellite licence is a set of conditions rather than a price.
- India auctions the spectrum for terrestrial mobile networks, where an operator buys an exclusive block of frequencies in a service area.
- The Act instead lists satellite based services among the uses for which spectrum is assigned administratively, on terms the government sets.
What changed
- Photonics
- The science and technology of generating, guiding and detecting light particles, photons, much as electronics handles electrons.
- C-V2X
- Cellular vehicle-to-everything, a radio technology built on mobile network standards that links vehicles, roads and pedestrians.
- Semicon 2.0
- The second phase of India's Semicon India Programme, ₹1,27,500 crore of support for chip design, fabs, packaging and research.