The Russian shipyard which upgraded INS Sindhurakshak, on Wedneday said it had installed advanced weaponry, both Indian and foreign systems, to enhance the submarine's "combat capability and safe operation".
Under the contract, Zvyozdochka shipyard will service 4 Indian submarines till 2009.
The work, which started two years ago, involved major upgradation at the 'Zvyozdochka' shipyard in Severodvinsk on the White Sea.
Anil Ambani will take over as the chairman of Pipavav Defence