INS Arighat, India’s second nuclear-powered ballistic submarine
Context
The Indian Navy welcomed its second Arihant-Class submarine, INS Arighat, at the Shipbuilding Centre (SBC) in Visakhapatnam.
About INS Arighat
The name "Arighat" is derived from the Sanskrit term meaning "Destroyer of the Enemy."
INS Arighat can reach a speed of 12–15 knots (22–28 km/h) on the surface and up to 24 knots (44 km/h) when submerged. It features four missile launch tubes and can carry up to four K-4 Submarine Launched Ballistic Missiles (SLBMs) with a range exceeding 3,500 kilometers or twelve K-15 SLBMs with a range of about 750 kilometers.
The K-15 missile can be fitted with a strategic nuclear warhead, and in addition to these missile systems, INS Arighat will also be armed with torpedoes.
India’s submarine fleet
India’s submarine fleet includes six new Kalvari-class boats already delivered, with 15 more scheduled as part of Projects 75 AS, 76, and 75 India.
India will now have two SSBNs – INS Arihant (S-2) and INS Arighat -- patrolling the high seas as a crucial part of the country’s nuclear triad and second-strike capability (due to its no-first-use policy).
India's first SSBN, INS Arihant, was commissioned in 2016. Both submarines are part of a four-SSBN project, with two more, currently known as S4 and S4*, still under construction.
The Navy has sought approval for two more nuclear-powered conventionally armed submarines (SSNs) from the government.
With this, India continues to strengthen its nuclear triad, enhancing its ability to maintain a credible second-strike capability. The addition of INS Arighat, the second SSBN (Ship, Submersible, Ballistic, Nuclear), marks an important milestone in India's nuclear submarine program.