India Submarine Manufacturing: Mazagon & Hindustan Pact
India’s defense sector is gearing up for a important boost! Mazagon Dock Shipbuilders Ltd (MDL) and Hindustan Shipyard Ltd (HSL) are joining forces to build submarines, a move that dramatically enhances the nation’s indigenous defense manufacturing capabilities. This pivotal partnership supports the Aatmanirbhar Bharat initiative, crucial for reducing reliance on foreign suppliers and strengthening India’s strategic position. The dual-coast submarine production facility, a long-held strategic vision, will also accelerate the delivery of submarines for the Indian Navy, which aims to have a fleet of 24 vessels. This strategic alliance is key to countering maritime threats and asserting dominance in the Indo-Pacific. News Directory 3 is following the developments closely. Discover what’s next for India’s underwater combat readiness.
India Enhances Submarine Production with Dual-Coast Shipyard Collaboration
Updated May 31, 2025
In a move to bolster its domestic defense capabilities, India is set to establish its first dual-coast submarine production facility.Mazagon Dock Shipbuilders Ltd (MDL) and Hindustan Shipyard Ltd (HSL) are preparing to sign an agreement to jointly construct submarines. This collaboration supports teh Narendra Modi government’s Aatmanirbhar Bharat initiative, aimed at increasing indigenous defense manufacturing and reducing reliance on foreign suppliers.
The partnership between MDL, based in Mumbai, and HSL, headquartered in Visakhapatnam, will substantially enhance India’s capacity to produce advanced submarines for the Indian Navy. MDL has experience building Shishumar-class and Scorpene-class submarines. The company is also competing for Project 75(I), a Rs 45,000-crore submarine tender, in collaboration with German submarine maker TKMS.
HSL is the only Indian shipyard to have completed a full-scale submarine modernization, the refit of INS Sindhukirti. The shipyard continues to handle major refits and overhauls for the Navy’s underwater fleet.
The dual-yard initiative fulfills a strategic vision from 1999, which called for establishing a submarine-building facility on the east coast to complement the west coast’s capabilities. This strategic move aims to enhance India’s underwater combat readiness and supports its ambition to become a dominant Blue water Navy in the Indo-Pacific region.
The Indian Navy has projected a need for at least 24 submarines to counter maritime threats and assert dominance in the Indo-Pacific. The MDL-HSL partnership will be crucial in accelerating delivery schedules, ensuring production continuity, and mitigating risks associated with single-yard dependence, given the complexity and timelines of submarine construction. Operation Sindoor, a Navy underwater surveillance exercise, highlighted the critical role of submarines in safeguarding India’s maritime interests.
What’s next
This collaboration marks a meaningful step toward creating a self-reliant ecosystem in underwater warfare platforms, securing india’s coastlines and strategic maritime interests. The dual-coast manufacturing strategy is expected to significantly enhance India’s underwater combat readiness.