The Indian Navy today launched the third Scorpene-class submarine Karanj at Mazagon Dock Shipbuilders Limited in Mumbai. Navy chief Admrial Sunil Lanba, was the chief guest on the occasion. Mr Lanba's wife Reena Lanba launched the submarine. <br/><br/>Speaking on the occasion, Admiral Lanba said the submarine will undergo rigorous tests for the next one year before it is commissioned. a total six submarines are going to be built at the MDL. The submarines are being built in collaboration with French shipbuilding major Naval Group. <br/><br/>Prime Minister Narendra Modi has last month commissioned the first of the six Scorpene-class submarine Kalvari into the Indian Navy and said its induction was a big step in the country's defence preparedness.<br/><br/>Defence Minister Nirmala Sitharaman had then said that submarine building is a sophisticated and exacting craft which very few countries possess in their industrial capacity.