NEW DELHI: Russian-made Indian nuclear submarine Arihant has been undergoing a repair for 10 months after it suffered a major damage, claims India media.
A possible human error reportedly caused the damage as the vessel had not sailed now for months.
Indian newspaper The Hindu reported that Arihant’s propulsion compartment suffered damage after water entered the area in March 2017.
The vessel is considered to be a key platform in the country’s second strike capability.
The newspaper quoted a naval source saying that the water rushed in because a hatch on the rear side was left open by mistake.
Another Indian nuclear submarine INS Chakra suffered damage to its sonar domes while entering the harbour in Visakhapatnam early December last year.
Indian Navy leased INS from Russia in 2012 for a period of 10 years.