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30th August 2024 (9 Topics)

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.
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