"Returned to Russia, June 2021" . "13.5" . . "Russian submarine Nerpa (K-152)" . "INS Chakra" . "INS ''Chakra 2''" . "8.14E9" . . "INS ''Chakra'' (S71)" . . . "INS ''Chakra''" . . "2012-04-04" . . . "''Nerpa''" . . . "Leased to the Indian Navy for 10 years in 2012, returned in June 2021" . . . . . "Russian submarine Nerpa (K-152)" . . . . "''Akula''-class submarine ''Nerpa''" . "Russian submarine K-152 ''Nerpa''" . "K-152 Nerpa" . "Chakra" . . . "Russian submarine ''Nerpa'' (K-152)" .