MUMBAI, May 3 (UPI) -- India's Russian-built submarine the INS Sindhurakshak arrived at its home port Mumbai after an overhaul including structural hull upgrades at the Zvezdochka shipyard.
The Sindhurakshak -- a Russian Type 877EKM submarine, Sindhughosh class for the Indian navy -- was constructed in Admiralteiskie Verfi shipyard in St. Petersburg in 1997.
It's one of 10 Kilo class submarines constructed in Russia's shipyards for the Indian navy from 1985-2000, a report by TV-Novosti said in January.
Zvezdochka shipyard, in Severodvinsk, near Archangel on Russia's western Arctic Ocean coast, signed the retrofit deal in June 2010 and the submarine arrived the following August.
The overhaul and retrofit for the 2,300-ton vessel reportedly cost around $80 million, TV-Novosti said.
Work included overhaul of hull structures, installation of upgraded electronic warfare and weapons control systems, the mounting of Indian-made sonar USHUS and installation of CCS-MK radio communication systems.
The submarine was handed over to the Indian navy in Severodvinsk Jan. 26 -- India's Republic Day -- and immediately left for Mumbai, a report by Russia and Indian Report said.
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