The Cabinet Committee for Security has cleared the follow on order for the Rs 35,000 crore Kolkata Class destroyers. Four more of the Kolkata Class destroyers / Project 15 B will be constructed in the Mumbai’s Mazgaon Docks. The Project 15 B ships are estimated to enter service by 2017.
Back in May 2000, the India had approved construction of three units of the Project 15A Kolkata Class destroyer. These ships were the follow on to the Type 15 Delhi Class destroyer. The three ships built under Project 15 A , namely INS Kolkata, INS Kochi and INS Chennai are undergoing sea trials. INS Kolkata is expected to be commissioned by 2012.
Project 15 B differs from Project 15 A becuase of the “flush deck.” Flush Deck enable stealth as its smooth with less angles and corners. The displacement of each Project 15 B will be 7000 tonnes. except weaponry, which will be imported, the ship will be totally indigenous. It is also expected to carry Nirbhat and Brahmos – II cruise missiles. In addition It may feature Barak -II for sir defence. As with most Indian design, the ship will operate two helicopters.