Here's what Scorpene-class submarines leaked documents reveal

Defence Minister Manohar Parrikar said documents relating to the French Scorpene submarine being built in the country appeared to have been hacked.

New Delhi: The Indian Navy said on Wednesday it is analysing the leak of data related to Scorpene submarines.

Sensitive data related to India's Scorpene submarines has been leaked, a report in the Australian media revealed, with French shipbuilder DCNS, which designed the submarine, facing a leak of documents spread over 22,000 pages.

Defence Minister Manohar Parrikar has, meanwhile, sought a report from the Navy in this regard. The minister said documents relating to the French Scorpene submarine being built in the country appeared to have been hacked.

The information allegedly leaked on the Scorpene submarines being built in India reveals:

• The stealth capabilities of the six new Indian Scorpene submarines

• The frequencies at which the subs gather intelligence

• The levels of noise the subs make at various speeds

• Diving depths, range and endurance

• Magnetic, electromagnetic and infra-red data

• Specifications of the submarine’s torpedo launch system and the combat system

• Speed and conditions needed for using the periscope

• Propeller’s noise specifications

• Radiated noise levels when the submarine surfaces

In the meantime, sources in the naval headquarters, where the documents are being analysed, have told news agency IANS that the documents are old.

One of the leaked documents is dated January 15, 2011 and is flagged "Restricted Scorpene India".