Sensitive data related to India's Scorpene submarines have been leaked, with French shipbuilder DCNS, which designed the submarine facing a leak of documents spreading over 22,000 pages.
More about Scorpene submarines.
The Scorpene submarines are built by the French ship builder DCNS.
These diesel-electric attack submarines come in four variants - CM-2000 conventional diesel-electric version, the AM-2000 AIP (Air Independent Propulsion) derivative, the downsized CA-2000 coastal submarine, and the enlarged S-BR for the Brazilian Navy without AIP.
An employee looks at the propeller of a Scorpene submarine at the industrial site of the naval defence company and shipbuilder DCNS in La Montagne. Reuters India's Scorpene class submarine is under construction at the Mazagon dockyard in Mumbai under a challenging program called Project-75.
India has ordered six Scorpene-class submarines in a $3 bln deal.
INS Kalvari is the first submarine being built in India which will be delivered to the navy next year and the remaining five by 2020 (each to be delivered every nine months after the first submarine).
The second submarine in this class will be named INS Khanderi.
Its main feature is the diesel propulsion and an additional Air Independent Propulsion that will help to recharge batteries without surfacing for more than three weeks.
A file photo taken on October 21, 2003 in the northwestern French port of Cherbourg shows the Scorpene submarine "O'Higgins" being built for Chili. AFP Some of these submarines have the ability to operate for more than 30 days under water and can go 300 metres deep.
The submarine can also carry weapons on board which can be reloaded at sea, through weapons launching tubes.
Kalvari has already finished a number of preliminary tests on the propulsion system, auxiliary equipment, and communication equipment.
This file handout photo taken and released by The Indian Navy on May 1, 2016 shows India's Scorpene Class Submarine INS Kalvari taking part in its maiden sea trials off the coast of Mumbai. French, Brazilian,Malaysian and Chilean navies will operate SSK Scorpene class attack submarines.
DCNS is developing its second-generation hydrogen fuel cell AIP modules for future Scorpène models.
(With agency inputs)