The INS Chakra II (K-152 Nerpa) is a 8,140-tonne (8,010-long-ton) Project 971 Shchuka-B (NATO: Akula II) type nuclear-powered attack submarine. Construction was started in 1993, but suspended due to lack of funding. K-152 Nerpa was launched in October 2008 and entered service with the Russian Navy in late 2009. The submarine was leased to the Indian Navy in 2011 and has been recommissioned as the INS Chakra II.
While K-152 Nerpa was undergoing sea trials in the Sea of Japan on 8 November 2008, an accident caused the deaths of some twenty sailors and injury to twenty-one others. A fire suppression system discharged gas in the bow of the sub, suffocating civilian specialists and navy crew members.
Operator : Indian Navy
Port of registry : Russia
Builder : Amur Shipbuilding Plant,Komsomolsk-on-Amur
Laid down : 1993
Launched : 2008
Sponsored by : India
Commissioned : 2009 (Russian Navy)
Recommissioned : 2011 (Indian Navy)
Name : INS Chakra