INS Sindhukirti's refit took so long that many defence experts believed the vessel would never return to operational service.
An Indian Navy submarine caught fire after an explosion and sank in Mumbai late on Tuesday night, with 18 personnel on board, including three officers, feared dead.
Violation of safety regulations could be the most likely cause of the explosions on submarine Sindhurakshak because of which it sank, Russian Deputy Prime Minister Dmitry Rogozin has said.
The conservative bureaucracy that influences the political masters is clearly not concerned with the vision documents prepared by defence chiefs to bring India's military into a state of preparedness, says Seema Mustafa