Nilgiri-class frigate (2019)

	An animated rendering of the Nilgiri-class frigate.
Class overview
Name	Nilgiri class
Builders	Garden Reach Shipbuilders & Engineers (GRSE); Mazagon Dock Limited (MDL);
Operators	Indian Navy
Preceded by	Shivalik class
Cost	₹4,000 crore (equivalent to ₹47 billion or US$590 million in 2023) per frigate (Estimated); ₹45,000 crore (equivalent to ₹530 billion or US$6.6 billion in 2023) (Total deal);
Planned	7
Building	7
General characteristics
Type	Guided-missile frigate
Displacement	6,670 t (6,560 long tons)
Length	149 m (488 ft 10 in)
Beam	17.8 m (58 ft 5 in)
Draft	5.22 m (17 ft 2 in)
Depth	9.9 m (32 ft 6 in)
Installed power	2 x MAN Diesel 12V28/33D STC (6000 kW each); 2 x General Electric LM2500;
Propulsion	CODAG
Speed	32 kn (59 km/h)
Range	2,500 nmi (4,600 km) at 28 kn (52 km/h); 5,500 nmi (10,200 km) at 16–18 kn (30–33 km/h);
Boats & landing ; craft carried	2 x RHIB
Complement	226 (Including 35 officers)
Sensors and ; processing systems	Radar :-; IAI EL/M-2248 MF-STAR S-Band AESA radar; Indra LTR-25 'Lanza' L-Band surface-search radar; Sonar :-; BEL HUMSA-NG active/passive sonar; Combat Suite :-; "Combat Management System" (CMS-17A);
Electronic warfare ; & decoys	DRDO "Shakti" EW suite (equipped with ESM/ECM and "Radar Finger Printing System" (RFPS)); Decoys :-; 4 x Kavach decoy launchers; 2 x NSTL Maareech torpedo-countermeasure systems;
Armament	Anti-air warfare :-; 4 × 8-cell VLS, for 32 Barak 8 surface-to-air missiles; Anti-surface warfare :-; 1 x 8-cell VLS, for 8 BrahMos anti-ship missiles; Anti-submarine warfare :-; 2 × triple-tube torpedo launchers for Varunastra; 2 × RBU-6000 anti-submarine rocket launchers (72 rockets); Guns :-; 1 × OTO Melara 76 mm naval gun; 2 × AK-630M CIWS;
Aircraft carried	2 × HAL Dhruv (or) Sea King Mk. 42B helicopters
Aviation facilities	Enclosed helicopter hangar capable of accommodating two multi-role helicopters.
Notes	First major class of Indian-designed warships to be built using integrated modular construction.

The Nilgiri-class frigates, formally classified as the Project-17 Alpha frigates (P-17A), are a series of stealth guided-missile frigates currently being built by Mazagon Dock Shipbuilders (MDL) and Garden Reach Shipbuilders & Engineers (GRSE), for the Indian Navy. The seventh and final ship of the Project 17A frigates, named Mahendragiri, was launched on 1 September 2023 at the Mazagon Dock by Dr Sudesh Dhankhar, wife of Indian vice-president Jagdeep Dhankhar. It is expected to be commissioned in 2024.

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