The third of the Scorpene-class submarines - Karanj (Yard 11877) - will be launched on Wednesday.
Chief of Naval Staff, Admiral Sunil Lanba's wife Reena Lanba will launch the submarine at the Mazagaon Dock Shipbuilders Ltd.
The first Scorpene-class submarine INS Kalvari, a diesel-electric attack submarine was commissioned on December 14, 2017, by Prime Minister Narendra Modi in Mumbai.
The second Scorpene-class submarine - Khanderi - was launched on January 12, 2017, and is expected to be commissioned later this year.
Six submarines (Scorpene-class or Kalvari-class) are being built at MDL in collaboration with M/s DCNS of France, as a part of Project 75 of the Indian Navy as part of Transfer of Technology.
The state-of-art features of the Scorpene include superior stealth and the ability to launch a crippling attack on the enemy, using precision-guided weapons.
An attack can be launched with torpedoes, as well as tube launched anti-ship missiles, whilst underwater or on surface. The stealth features give it invulnerability, unmatched by many submarines.
The Scorpene submarine is designed to operate in all theatres, including the tropics. All means and communications are provided to ensure interoperability with other components of a naval task force.