Which one of the following is the best description of ‘INS Astradharini’, that was in the news recently?

The answer is C, a torpedo launch and recovery vessel. INS Astradharini is one of the Indian Navy's small specialist ships built to support torpedo trials and exercises. It launches exercise torpedoes and then recovers them from the sea, which is why the recovery role is part of its name and function. Its sister ship, INS Astravahini, serves the same purpose.

• A (amphibious warfare ship): That describes landing-platform ships like INS Jalashwa, which carry troops and vehicles to shore. Astradharini does nothing of the kind.
• B (nuclear-powered submarine): Nuclear submarines are the Arihant class, which carry ballistic missiles. Astradharini is a small surface vessel, not a submarine.
• D (nuclear-powered aircraft carrier): India has no nuclear-powered carrier. INS Vikramaditya and INS Vikrant are conventionally powered.

The core concept is the naval auxiliary and support vessel, which is a recurring theme in Indian maritime security. For Mains, it links to naval modernisation and indigenous shipbuilding under the Maritime Capability Perspective.

Trap: Candidates read the 'Astra' prefix as a weapons-related or strike role and pick a combat ship or submarine. Ask what the vessel physically does before choosing.