The Indian submarine INS Sindhudhvaj (S56) allegedly “killed” USS City of Corpus Christi (SSN 705) during an exercise called Malabar that is held annually between India, Japan and the United States.
According to the Indians, the submarines were assigned to track each other down in the Bay of Bengal. “The way it happens is that the Sindhudhvaj recorded the Hydrophonic Effect (HE) – simply put, underwater noise – of the nuclear powered submarine and managed to positively identify it before locking on to it.
Being an exercise what did not happen was the firing,” an Indian naval officer told India Today. The Indian vessel then “sank” USS City of Corpus Christi using 533mm torpedoes. Read more