Indian Navy conducts pre-delivery trials of Russian n-sub

(Domain -B ) :  Pre-delivery trials of the Russian Schucka-B (NATO: Akula-II) class nuclear attack submarine, the K-152 "Nerpa" are expected to be complete by August-end after which it will be handed over on a ten-year lease to the Indian Navy.
It will be commissioned into the navy as INS Chakra. An earlier, Charlie-class nuclear submarine, similarly taken on lease by the Indian Navy in the late 1980s, was also commissioned as the 'Chakra'.
The Akula-II submarine is currently in the midst of trials in the Sea of Japan with an Indian crew operating under the supervision of Russian naval personnel and shipyard experts. The crew is expected to sail for home waters sometime in the September-November period, the state-run ITAR-TASS news agency said in its report.
"The Indian crew is giving a kind of proficiency test to the Russian experts. After the completion of trials in the end of August, the process of transfer of the nuclear submarine to the Indian Navy will commence," the agency reported quoting unnamed officials of Amur Shipyard - the manufacturer of the Nerpa.

The Indian crew has undergone a two-year-long training course, including a six month crash course in the Russian language in India, and about 18 month training in St Petersburg to sail and operate the Shchuka-B class submarine.
The Akulas have for long been considered the quietest of nuclear attack submarines amongst all the navies of the world.
The Indian crew will operate the vessel on its journey from Vladivostok to India and will be accompanied by some Russian submarine experts, who will be on hand in case of emergencies.
The 'Nerpa'(INS Chakra), designed by St Petersburg-based "Malachite" and "NPO Avrora", is a third generation nuclear attack submarine, the construction of which began at the Amur Shipyard in 1991 just before the collapse of  the Soviet Union.
With the entire defence and aerospace industry caught in the throes of a cash crunch, the construction of the Nerpa and a sister submarine was frozen. At one point India stepped in to provide financing and the project was completed under a $650-800 million deal according to various Russian media reports.
It is still not certain if the deal involves just one or two Akula-II class subs.