India's Mazagon Dock Shipbuilders (MDL) has launched the third Scorpene-class diesel-electric submarine for the Indian Navy.
After launch, Karanj was towed to Mumbai Port Trust where she will undergo trials and tests, both in harbour and at sea before it is commissioned into the navy.
Scorpene-class (also known as Kalvari-class) submarines are 67.5 metres long with a height of 12.3 metres. They are fitted with 360 battery cells (each weighing 750kg) powering the permanently magnetised propulsion motor.
The boats are equipped with the "submarine tactical integrated combat system" (SUBTICS), sea-skimming Exocet missiles or the heavyweight surface and underwater target (SUT) torpedoes.
MDL is building a total of six submarines in the class under a transfer of technology agreement with France's Naval Group.