INS Karanj  

Context: The Indian Navy (March 10, 2021) inducted its third Scorpene-class conventional diesel electric submarine, INS Karanj, into service.

Background:

• The first submarine of the class, INS Kalvari, was commissioned in December 2017 and the second, INS Khanderi, in September 2019.
• A fourth submarine, Vela, was launched into the water in May 2019 and the fifth, Vagir, in November 2020, and both are undergoing sea trials. The sixth is in an advanced stage of outfitting.

Scorpene-class submarines:

• The Scorpene class submarines are one of the most advanced conventional submarines in the world.
• The submarine has superior stealth features, such as advanced acoustic silencing techniques, low radiated noise levels and ability to attack with precision-guided weapons on board.
• The Indian Navy intends to use the submarines for missions such as area surveillance, intelligence gathering, anti-submarine warfare, anti-surface warfare and minelaying operations.
• The submarines are armed with six torpedo-launching tubes, 18 heavy weapons, tube-launched MBDA SM-39 Exocet anti-ship missiles and precision-guided weapons.
• Moreover, the attack submarines can travel at a maximum submerged speed of approximately 20 knots and have the ability to remain submerged for 21 days. It has a diving depth of more than 350m.
• The Scorpene class of submarines were designed by French naval shipbuilding firm DCNS in partnership with Spanish shipbuilding firm Navantia.

Project 75I:

• Under this project of the Indian Navy, six latest-generation attack submarines are being built. They are expected to be completed by 2022. The project is taking shape at Mazagon Dock in Mumbai.
• Naval Group is among the five Original Equipment Manufacturers (OEM) shortlisted for the Navy’s project that was processed through the Strategic Partnership (SP) model of defence procurement.
• MDL and Larsen & Toubro are the two Indian companies shortlisted under it.

https://indianexpress.com/article/explained/explained-ins-karanj-the-scorpene-class-submarine-inducted-into-service-7224031/