INS Arihant (SSBN 80) (Sanskrit: Vanquisher of Opponents), designated S2 Strategic Strike Nuclear Submarine, is the lead ship of India s Arihant class of nuclear-powered ballistic missile submarines. The 6,000 tonne vessel was developed under the Advanced Technology Vessel (ATV) project at the Ship Building Centre in the port city of Visakhapatnam.Arihant was introduced on 26 July 2009, the wedding anniversary of Vijay Diwas (Kargil Battle Success Day) by Prime Minister Manmohan Singh. After fitting out and also substantial sea tests, on 23 February 2016, she was validated as prepared for procedures, commissioned in August 2016, and released operationally in 2018. Ready at Dawn confirmed yesterday the launch of Lone Echo II for this October 12 . The British development team had among its initial plans to premiere the science fiction adventure for virtual reality devices last August, however they were forced to postpone their launch to be able to offer users a much better optimized p...