The Indian Navy launched the third state-of-the-art Scorpene class submarine, Karanj, in Mumbai on Wednesday. Navy chief Admiral Sunil Lanba’s wife Reena Lanba launched the submarine, constructed by shipbuilder Mazagon Dock Limited in Mumbai.

The submarine will undergo rigorous tests for one year before it is commissioned, Admiral Lanba said. He called for introspection in the ship building business in view of the delay in the construction and commissioning of submarines.

The first three submarines of the Scorpene class have been named Kalvari, Khanderi and Karanj. The remaining three (to be launched in the future) will be called Vela, Vagir and Vagsheer, a Navy spokesperson said.