The first of the six Scorpene submarines would now be inducted into the Navy by 2015 against the planned induction in December next year, the Defence Ministry said on Wednesday.
Defence Minister A K Antony said the Government has also granted sanction for cost revision of the Project-75 contract signed with French company DCNS in 2004 under which the first submarine was scheduled to be delivered in 2012 and was to be followed up by delivery one vessel each year up to 2017.
"The first submarine is scheduled to be delivered in the second half of 2015. There has been a delay due to initial teething problems and absorption of technology," the Minister said in a written reply in Rajya Sabha.
The submarines are being built by the Mumbai-based Mazagon Dockyards Limited (MDL) in partnership with DCNS.
The Minister said that the cost revision was sanctioned keeping in mind the increase in cost of MPM items, related subheads and additional MDL infrastructure.
Antony said the Navy was bridging any submarine capacity gap through upgrades on the existing fleet of Russian and German-origin under water fleet.
He added that the government was also working on the proposal to construct six additional submarines for the Navy under Project-75 (India).