Mumbai, Dec 5 (IANS): Guided missile frigate INS Betwa slipped on the dock blocks while undocking at the Naval Dockyard here on Monday, an official said.
The incident occurred around 1.50 p.m. when the ship was undergoing a refit at the dry dockyards here.
The extent of damage to the 3,800 tonne Brahmaputra-Class frigate, commissioned into the Indian Navy in July 2004, is being assessed.
There is no information on any casualties or whether the vessel had touched the ground after slipping in the dry dock.