Destroyer Surat and Frigate Nilgiri Delivered to Indian Navy

The ships have been designed and constructed indigenously by the Warship Design Bureau of Indian Navy and MDL, respectively. This is in keeping with the thrust, given by Government of India and the Indian Navy, on nation building through self reliance.

Simultaneous induction of two state-of-the-art warships will significantly enhance the operational capabilities and combat readiness of the Indian Navy.

Yard 12707 (Surat), the fourth and final Project 15B stealth guided missile destroyer, follows in the wake of her predecessors Indian Navy (IN) Ships Visakhapatnam, Mormugao and Imphal commissioned in the past three years. The delivery of Surat culminates the iconic indigenous destroyer building project of the Indian Navy, which began with the Project 15 (three Delhi class, 1997-2001), followed by Project 15A (three Kolkata class, 2014-2016) and Project 15B (four Visakhapatnam class, 2021-2024). Being a guided missile destroyer with a displacement of 7,400 tons and an overall length of 164 metres, Surat is a potent and versatile platform equipped with state-of-the-art weapons and sensors, including surface-to-air missiles, anti-ship missiles and torpedoes.

Powered by a Combined Gas and Gas (COGAG) propulsion set, comprising four gas turbines, she has achieved speeds in excess of 30 knots (56 km/h) during her sea trials. It is also poised to be IN’s first Al enabled warship utilising indigenously developed Al solutions which would enhance its operational efficiency manifolds.

Yard 12651 (Nilgiri), the first Project 17A stealth frigate is a follow-on of the Shivalik class (Project 17) frigates active in service. Nilgiri is first among the seven P17A frigates under construction at MDL, Mumbai and GRSE, Kolkata. These multi-mission frigates are capable of operating in a ‘blue water’ environment dealing with both conventional and non-conventional threats in the area of India’s Maritime Interests. The newly design ships are also being built using ‘Integrated Construction’ philosophy, which involves extensive pre-outfitting at the Block stages to reduce the overall build periods.

The ships are powered by two Combined Diesel or Gas (CODOG) main propulsion plants, each comprising a Diesel Engine and Gas Turbine, driving a Controllable Pitch Propeller (CPP). The ships also have state- of-the-art Integrated Platform Management System (IPMS). The ships are fitted with supersonic surface-to-surface missile system, Medium Range Surface-to-Air Missiles system, 76 mm Upgraded Gun, and a combination of rapid-fire close-in weapon systems.

The delivery of the vessels showcases the nation’s design, ship construction, engineering prowess and industrial know-how. The delivery also reinforces Indian Navy‘s unrelenting focus on Aatmanirbharta in both ship design and ship building.

In keeping with the current thrust on nation building through self-reliance the vessels have 75% indigenisation content with orders on a myriad of indigenous firms including MSMEs (more than 200 in each shipyard). The projects have boosted self-reliance, economic development, employment generation, growth of MSMEs and ancillary ecosystem in the country.

The warships are fitted with major weapons and sensors sourced from indigenous OEMs, viz. BAPL, L&T, MTPF, BEL, BHEL, Mahindra etc.

Surat’s keel was laid on November 7, 2019 and was launched on May 17, 2022. The ship has been delivered to the Indian Navy in 31 months from launch to delivery, making her the fastest indigenous destroyer ever built. The ship had commenced her Contractor Sea Trials on June 15, 2024 and completed her Final Machinery Trials on November 25, 2024, within an unprecedented record time of just six months.

Nilgiri’s keel was laid on December 28, 2017 and the ship was launched into water on September 28, 2019. The ship had sailed out for her maiden sea trials in August 2024 and ever since, has undergone a comprehensive schedule of trials in harbour and at sea, leading up to its delivery now.

The balance six ships of the class are at various stages of construction at MDL, Mumbai and GRSE, Kolkata. These ships are expected to be delivered to IN in 2025 and 2026.