The Indian Navy will take delivery of a Kilo class diesel-electric submarine that has been overhauled in Northern Russia by the end of 2012. The INS Sindhurakshak will begin a two-week sea trial followed by additional tests before begin delivered. “The Indian submarine, which has been repaired and modernized at the Zvezdochka shipyard, sailed for sea trials on Monday,” the company said in a statement. The upgrade program, reported worth $80 million, included a complete overhaul of the submarine, including its hull structures, as well as improved control systems, electronic warfare systems, and an integrated weapon control system. India has already acquired 10 Kilo class submarines from Russia and for have been overhauled.