Arihant class nuclear-powered submarine S4* likely to be named INS Arisudan | Hindustan Times
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Thu, Jan 08, 2026
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Arihant class nuclear-powered submarine S4* likely to be named INS Arisudan

India's fourth Arihant-class nuclear submarine, likely named INS Arisudan, was launched by Defence Minister Rajnath Singh on October 16, 2022, and is expected to be commissioned by 2027. Its predecessor, INS Aridhaman, will enter service in 2026. These submarines enhance India's nuclear deterrent capabilities amid regional tensions, particularly with Pakistan and China. Naming conventions reflect historical themes and previous vessels.

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