Project 17A Updates: Mazagon Dock Shipbuilders Ltd (MDL) handed over Taragiri (Yard 12653), the fourth frigate of the Nilgiri (P17A) class, to the Indian Navy on 28 November 2025. It is the third of the MDL-built ships in the seven-ship programme and continues the rapid tempo of deliveries the programme has achieved in the last year.
Taragiri and Project 17A
Project 17A (Nilgiri-class) is a next-generation, multi-mission stealth frigate programme designed by the Warship Design Bureau to replace and outperform older frigates. These ships combine reduced radar/IR signatures, modern sensors and weapons, and automation making them versatile escorts for carrier groups, fleet operations, and independent missions in the Indian Ocean region. The programme is also a flagship of India’s self-reliance push (Aatmanirbhar Bharat) because a high portion of equipment and systems are indigenously sourced.
Shipyard, schedule and scale of indigenisation
The seven P17A ships are split between two Indian shipyards MDL (Mumbai) and GRSE (Kolkata) in a 4:3 build division. The programme has steadily shortened build times as shipyards and suppliers gain experience: the class has seen multiple deliveries and launches across 2024–2025.
Project statements and press releases highlight an indigenisation level of roughly 75%, with hundreds of MSMEs involved and thousands of jobs supported directly and indirectly. The remaining P17A vessels are scheduled for progressive delivery through mid-2026.
Project 17A Updates: Key specifications
Type: Guided-missile, multi-mission stealth frigate (Nilgiri-class / P17A).
Displacement: ~6,670 tonnes.
Length / Beam: ~149 m × 17.8 m.
Speed: Designed for ~32 knots (service speed ~28+ knots depending on load).
Propulsion: Combined Diesel Or Gas (CODOG) diesel engines + gas turbines driving controllable-pitch propellers.
Sensors & weapons (overview): Vertical Launch System (surface-to-air missiles), supersonic surface-to-surface missiles, medium-range SAMs, rapid-fire CIWS/30 mm guns, lightweight torpedo launchers and rocket launchers for anti-submarine warfare. These ships carry integrated combat management and platform management systems.
How these ships are built?
The P17A programme uses modular or integrated construction: large hull blocks and compartments are built at different facilities (sometimes geographically separated), then transported and assembled at the main slipway for final integration, outfitting and trials.
That approach shortens schedules, allows parallel workflows, and helps spread supplier work across the nation critical for a high-indigenisation goal. MDL also upgraded infrastructure (gantry cranes, module shops, wet basin) to support block construction and faster assembly.
What can Taragiri do at sea?
The P17A frigates are built to detect and engage threats at multiple ranges: long-range SAMs from vertical launch systems for aerial threats; supersonic anti-ship missiles for surface targets; dedicated anti-submarine sensors and torpedoes/rocket launchers; and close-in weapons for last-ditch defence. Advanced sensors, integrated bridge and combat systems increase survivability and reduce crew workload. In short, they are designed to be fleet escorts, sea-control platforms, and independent surface action assets.
INS Himgiri: New Nilgiri-Class Frigate Joins Indian Navy
Jobs, MSMEs and suppliers
Project 17A has been explicitly linked with boosting domestic defence industry: procurement, sub-contracting and systems integration created work for more than 200 MSMEs and produced direct and indirect employment in thousands. The programme is frequently referenced by the Ministry of Defence and shipyards as an example of Aatmanirbhar Bharat in high-tech manufacturing. If you care about defence industrialisation, P17A is a live case study.
Testing, trials and commissioning
After launch, a frigate undergoes outfitting (systems installation), harbour trials (systems checks) and then sea trials (performance, propulsion, sensors, weapons trials). Only after satisfying the Navy’s test protocols is a ship formally delivered and then commissioned into service (commissioning is the formal ‘bringing into fleet’ ceremony). P17A ships have followed this sequence and several have already been commissioned or delivered during 2024–2025.
Once the remaining P17A frigates join the fleet by mid-2026, the Indian Navy will have seven modern stealth frigates that significantly strengthen escort capability for carriers and task groups, improve anti-submarine warfare posture, and offer flexible presence options across the Indian Ocean Region. Strategically, these ships enhance deterrence and provide greater operational depth for India’s surface fleets.
