Science and Technology › Defence technology
Military platforms, drones and new weapons
The platforms that carry military power, and new kinds of weapon: aircraft and their engines, ships and submarines, tanks and artillery, drones and counter drone systems, and directed energy and electronic warfare. Prelims has asked about fifth generation fighters, stealth and drone swarms.
UPSC has asked
- Prelims 2026: stealth technology, radar cross-section and radar absorbing material
- Prelims 2025: unmanned aerial vehicles, their landing, hovering and power
Showing 1 of 9 subjects, those that changed from 1 to 15 September 2026.Show all
INS Nipun
Copy link to INS NipunPrelims
A diving support vessel is built around pressure rather than firepower. Its work is to keep divers alive while they are down, and to be overhead when a submarine cannot come up.
- Indian Naval Ship (INS) Nipun, the Navy's second Nistar class diving support vessel, was commissioned.
- It follows INS Nistar, and like it was built by Hindustan Shipyard Limited.
- It supports saturation diving, so divers can work on the seabed for days at a time.
- Its hyperbaric lifeboat evacuates divers still under pressure, so an emergency does not force a rapid decompression.
- It is the mother ship for a Deep Submergence Rescue Vessel (DSRV), which rescues the crew of a disabled submarine.
What changed
1 Sep 2026
30 Jul 2026Updatealso in news
- Nipun, the second indigenous Diving Support Vessel, was delivered to the Navy by Hindustan Shipyard.
PIB, 30 Jul 2026: DELIVERY OF SECOND INDIGENOUS DIVING SUPPORT VESSEL - ‘NIPUN’ (opens in a new tab)