Answer: Nuclear powered submarine
Notes: India is ready to commission its second nuclear-powered submarine, INS Arighat, for strategic deterrence. INS Arighat is India's second indigenously built nuclear-powered ballistic missile submarine (SSBN), following INS Arihant, commissioned in 2018. It was built at the Indian Navy's Ship Building Centre in Visakhapatnam. It is crucial for India's nuclear triad, allowing nuclear missile launches from land, air, and sea. The submarine is 111.6 meters long, with a displacement of 6,000 tonnes, and can reach speeds up to 24 knots submerged. It can carry four K-4 SLBMs or twelve K-15 SLBMs, with additional torpedoes and mines for defense.
