Garden Reach Shipbuilders & Engineers is India’s most prolific warship builder - a government-owned yard that has delivered more naval vessels than any other shipyard in the country, including the nation’s first indigenous warship in 1961. Founded in 1934 on the banks of the River Hooghly in Kolkata, it has spent six decades graduating from building patrol boats to frigates and fleet tankers, all while remaining a zero-debt, dividend-paying enterprise. The recurring thread is vertical integration: GRSE owns engine and deck-machinery plants so it can deliver warships faster, and it repeatedly uses the cash flows and credibility from naval contracts to step into adjacent engineering markets - portable bridges, marine engines, and now green vessels. # Business segments A single warship-building engine that feeds five smaller, vertically integrated workshops - ship repair, commercial export vessels, portable steel bridges, deck machinery, and marine diesel engines - plus an early-stage bet on green and autonomous craft, all anchored by a multi-decade order book from the Indian Navy and Coast Guard. ## 1. Warship & defence vessel construction: the yard that builds India’s fleet **GRSE has built and delivered 111 warships - the highest count of any Indian shipyard - and its order book today stands at 39 platforms across nine projects, with another roughly ₹1,50,000 crore of tenders in the pipeline where the company is either the lowest bidder or awaiting formal requests for proposals.** - **Repeat customer, captive demand** - the Indian Navy and Indian Coast Guard are the company’s primary customers, and the Ministry of Defence gives highest priority to indigenously designed and manufactured products under the ‘Make in India’ procurement rules, which means GRSE competes in a protected domestic market where foreign yards are often locked out. - **In-house design is the differentiator** - a Central Design Office with roughly 100 engineers provides end-to-end design, from concept through system integration, using tools like Aveva Marine and a dedicated Virtual Reality lab; this is how GRSE achieved over 90% indigenous content on Landing Craft Utility ships and was the first yard to build a warship entirely with Indian-developed steel. - **Riverine constraints force creative expansion** - the Kolkata yard sits on the Hooghly River with tide-dependent draft and narrow channels, so the company is adding capacity outside West Bengal: two brownfield sites in the state, plus greenfield yards planned in Gujarat and Andhra Pradesh, alongside a long-term lease of three dry docks from the Kolkata port authority. - **The next decade is already visible** - live tenders include the Next Generation Corvette (eight ships, GRSE is the lowest bidder and will be awarded five ships at a likely value of more than ₹25,000 crore) and another \~₹1,50,000 crore of projects with Acceptance of Necessity, including Mine Countermeasure Vessels and Landing Platform Docks, against an estimated Indian defence shipbuilding market of over ₹1.5 lakh crore over ten years. ## 2. Ship repair & refit: the steady-margin workshop next door **GRSE took over three dry docks from the Kolkata port on a 15-year concession - extendable by another 15 - and turned a ₹19 crore repair business into a ₹114 crore one in three years, with margins between 15% and 25%.** - **Infrastructure secured on a revenue-share** - the Khidderpore Dry Dock complex is operated under a concession agreement where profit is split equally with the port authority, giving GRSE waterfront access without the capital cost of building new dry docks. - **High occupancy from day one** - the three dry docks reached almost 90% occupancy within three months of takeover, and a fourth dock is now being added, which suggests demand is running ahead of supply. - **Refit work locks in the naval relationship** - the division has executed major and minor refits for the Indian Coast Guard and the Government of Mauritius, including the warship CGS Barracuda that GRSE originally exported; every refit deepens the customer tie beyond the initial build contract. - **A tiny share of a large global pool** - the worldwide ship repair market is worth around ₹15,000 crore over five years, but India’s share is less than 1%, so even modest domestic growth represents a large relative opportunity. ## 3. Commercial & export shipbuilding: proving the yard can sell beyond the Navy **After a long hiatus, GRSE re-entered commercial shipbuilding and has now booked orders for 12 multi-purpose vessels from a German shipping company, with a follow-on contract for four hybrid-powered variants signed at USD 62.44 million.** - **Export revenue is scaling** - export revenue crossed ₹270 crore in FY26, driven by the German multi-purpose vessel programme and a dredger under construction for Bangladesh, though a tug order for Bangladesh was cancelled in May 2025. - **Partnerships unlock design and market access** - GRSE has signed MoUs with Norwegian, Swedish, and Danish firms for polar research vessels, propulsion equipment, and expedition cruise ships, and with a Dubai-based design firm for offshore platforms, which lets it bid for work it could not design alone. - **Government tailwinds are material** - a ₹69,725 crore national shipbuilding revitalisation package and four aggregated commercial tenders from the Ministry of Shipping (including tankers and gas carriers) are creating demand that did not exist when GRSE was purely a naval yard. ## 4. Portable steel bridges: a market-leading niche built on Army demand **GRSE holds about 60% of the Indian portable steel bridge market, has supplied over 5,700 bridges to the Army, Border Roads Organisation, and state governments, and crossed ₹200 crore in revenue from this division for the first time in FY26.** - **Standardised product, repeat orders** - the bridges are pre-fabricated modular steel structures, and GRSE has live MoUs with the Border Roads Organisation and NHIDCL that generate predictable order flow; the NHIDCL agreement alone covers 75 bridges over two years. - **New designs expand the range** - the division has developed a lightweight carbon-fibre assault bridge for the Army, a 140-foot double-lane modular bridge, and a 190-foot single-lane variant, all rated for 70-tonne tracked vehicles, which opens use cases beyond the traditional Bailey bridge. - **Export geography mirrors India’s neighbourhood** - bridges have been exported to Bangladesh, Bhutan, Nepal, Myanmar, and Sri Lanka, and in FY26 thirty of the 110 bridges delivered went to export customers. ## 5. Engineering products - deck machinery, marine engines & naval guns: the vertical-integration toolkit **GRSE manufactures its own deck machinery, assembles and overhauls marine diesel engines under licence from MTU, and has begun delivering 30 mm naval surface guns - each workshop exists primarily to make warship construction faster and cheaper, but all three sell to external customers as well.** - **Deck machinery is captive supply that also sells outside** - the Taratala unit in Kolkata makes anchor windlasses, capstans, davits, winches, and helo-traversing systems; these go into GRSE’s own ships and are also supplied to other shipyards and to operational Navy and Coast Guard vessels. - **Engines are assembled under licence, with localisation rising** - the Ranchi Diesel Engine Plant holds a licensed agreement with Rolls Royce Solutions (MTU) for governmental marine engines up to 4,300 kW, and is transitioning from assembly to co-production with a target of 50% indigenisation; a new 6.7 MW dynamometer test bed now allows two engines to undergo full-power trials simultaneously. - **Naval guns are a new, delivered product** - a ₹248.51 crore contract for 30 mm naval surface guns with electro-optical fire control is under execution; the first gun has been delivered and seven more followed in FY26, with four completing sea acceptance trials. - **Partnerships fill the technology gaps** - MoUs with Berg Propulsion (Sweden) for marine propulsion systems, Reintjes (Germany) for gearboxes, Caterpillar for medium-speed engines, and Medha Servo Drives for electrical propulsion systems mean GRSE can offer integrated propulsion packages without developing every component in-house. ## 6. Green energy & autonomous vessels: the future fleet, in prototype today **GRSE has already delivered India’s largest fully electric passenger ferry, is building 13 hybrid ferries for West Bengal, and is developing a triad of autonomous platforms - surface, underwater, and aerial - positioning for naval and commercial demand that is still taking shape.** - **Electric and hybrid ferries are in the water, not on paper** - the 150-passenger catamaran ‘Dheu’ is operating on the Hooghly, and the first two 100-passenger hybrid ferries for the West Bengal government are launching imminently, with all 13 due by the end of the financial year. - **Autonomous platforms span three domains** - the surface vessel ‘Swadheen’ and the underwater vehicle ‘Neerakshi V2’ have been upgraded; ‘Neerakshi’ is man-portable and designed for mine detection and anti-submarine warfare training, while an unmanned surface vessel ‘Jaldoot’ has been delivered to DRDO. - **Certification partners de-risk the technology** - MoUs with the American Bureau of Shipping for electric tugs, Lloyd’s Register for a hydrogen fuel cell ferry, and the Indian Register of Shipping for autonomous and green vessels mean GRSE is building to class-approved standards from the start, which is essential for commercial and naval acceptance. # Group structure and partners **GRSE is a 74.50% government-owned, zero-debt company with no subsidiaries or joint ventures - it operates seven manufacturing units across Kolkata and Ranchi and has stitched together a network of over 20 non-equity technology partnerships that supply the design and component know-how its in-house teams do not yet possess.** - **Seven operating units, one concession** - the company runs three shipbuilding yards (Main Works, Rajabagan, Fitting Out Jetty), a bridge factory (61 Park), a deck machinery plant (Taratala), a diesel engine plant (Ranchi, 62 acres), and the Khidderpore Dry Dock complex under a 15-year profit-sharing concession from the Kolkata port authority, with a fourth dock and a 30-year lease on a Howrah waterfront parcel now being added. - **Green and autonomous know-how comes from specialist firms** - Shift Clean Energy, Seatech Solutions, ABS, Lloyd’s Register, and the Indian Register of Shipping provide the energy-storage, design, and certification expertise for electric tugs, hydrogen ferries, and autonomous vessels that GRSE then builds in its yards. - **Commercial shipbuilding and export partners provide market entry** - Carsten Rehder (Germany) is the customer and partner for the multi-purpose vessel programme, while MoUs with DEMPO Group, SWAN Defence, Hindustan Shipyard, Aries Marine, and SunStone create consortium and subcontracting pathways into commercial vessels, offshore structures, and expedition cruise ships.