Indian Navy's third Scorpene-class submarine 'Karanj' is pictured at its launch ceremony at the Mazagon Dock Shipyard in Mumbai on January 31, 2018. All pics/AFP
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
The first submarine INS Kalvari was commissioned in December last year.
The third Scorpene-class submarine 'Karanj' being pulled into the Arabian Sea after its launch ceremony