 A few minutes later, the destroyer continued her way to the coast of East Pakistan.On the night of 4–5 December 1971, "Ghazi" sunk with all 93 servicemen on board (11 officers and 82 enlisted) under the mysterious circumstances off the Visakhapatnam coast, allowing the Indian Navy to effect a naval blockade of East Pakistan (now Bangladesh).According to Indian DNI's director Rear-Admiral Mihir K. Roy, "Ghazi"s existence was revealed when a signal addressed to naval authorities in Chittagong was intercepted, requesting information on a lubrication oil only used by submarines and minesweepers.