INS Aridhaman, nuclear-powered submarine, enters India’s naval fleet

Defence Minister Rajnath Singh presided over a brief ceremony to formally commission the country’s third nuclear submarine, INS Aridhaman (S4), which is the third in the Arihant-class of SSBNs (Submersible Ship Ballistic Nuclear), on Friday (April 3) at Visakhapatnam.

The boat, being part of the strategic weapons programme, falls under the domain of the Strategic Forces and is part of the country’s nuclear triad. As per sources in the Navy, the commissioning was not made public and was carried out quietly, but Mr. Singh dropped enough hints to acknowledge the commissioning of the vessel.

source:thehindu.com