India's Project 75I submarines will utilize Air-Independent Propulsion (AIP) technology, enabling them to remain submerged for weeks. The Union Finance Ministry has approved a ₹70,000 crore deal for six advanced submarines, enhancing India's naval capabilities and self-reliance in defense manufacturing.

• 01The Union Finance Ministry has approved a ₹70,000 crore deal for Project 75I, which involves building six advanced submarines.
• 02The submarines will be constructed by Mazagon Dock Shipbuilders Limited in collaboration with Germany's thyssenkrupp Marine Systems.
• 03Air-Independent Propulsion (AIP) technology allows submarines to operate underwater for two to three weeks without surfacing.
• 04The first submarine is expected to be operational seven years after the contract is signed, with subsequent deliveries annually.
• 05The project aims for at least 45% Indian-made content in the first submarine, increasing to 60% by the sixth.

The approval of the submarine project will bolster India's defense capabilities and promote local manufacturing in the defense sector.