 The Indian Navy is one of the largest navies in the world, and as of July 2020 possesses 1 aircraft carrier 1 upcoming aircraft carrier, 1 amphibious transport dock, 8 Landing ship tanks, 10 destroyers, 13 frigates, 1 SSN (hull classification symbol)1 nuclear-powered attack submarine,1 Ballistic missile submarine, 15 conventionally-powered attack submarines, 23 corvettes, 10 large offshore patrol vessels, 4 fleet tankers and various auxiliary vessels and small patrol boats.For ships no longer in service see List of ships of the Indian Navy and for future acquisitions of the fleet, see future ships of the Indian Navy.Besides the following navy ships, the Indian Coast Guard operates around 150 armed patrol ships of various sizes.