India is reportedly considering a project to incorporate six Japanese Soryu-class diesel-electric submarines into its fleet, as part of Project 75I.
The Times of India reported that the proposal was sent asking the Japanese Government to 'consider the possibility' of building the six stealth submarines in India.
In compliance with the government's 'Make in India' initiative, the latest proposal includes the option for Japan to form a joint venture with an Indian shipyard.
If accepted, Japan would join other bidders, including France's DCNS, Germany's HDW, Spain's Navantia and Russia's Rosonboronexport.
India launched Project 75I in 2007 to replace its ageing fleet with next-generation diesel submarines.
With a submerged weight of 4,200t, Soryu submarines are claimed to be larger than German Type 214, French Scorpene or Russian Kilo vessels, and can carry a heavier weapons load.
The Indian Government is also considering procuring Japanese US-2i ShinMayva amphibious aircraft for the Indian Navy, which comes after Japan ended its self-imposed export ban.
Australia is assessing an option to replace its Collins-class vessels with Soryu submarines.