Indian Navy was hit by yet another mishap today with gas leakage taking place on a ship in Mazagaon Dock Limited (MDL) in Mumbai, leading to the death of a Commander-rank officer and hospitalisation of some others. INS Kolkata-class destroyer ship Yard-701, being built by the MDL, suffered malfunction in its Carbon Dioxide unit while undergoing machinery trials, leading to gas leakage, sources said.One Navy commander died and some others were taken ill and hospitalised in today’s incident, PTI reported.The mishap took place just more than a week after fire and smoke incident on INS Sindhuratna off the Mumbai coast, in which two officers lost their lives and seven sailors were taken ill.This is the 12th mishap involving Navy’s assets over the last seven months.