INS Tamal: Indian Navy’s Newest Stealth Frigate — Complete Guide

INS Tamal (F71) is a stealth guided-missile frigate commissioned into the Indian Navy on 1 July 2025 at Kaliningrad, Russia. She is the eighth and final foreign-built Talwar-class (Project 1135.6) frigate and belongs to a supplementary two-ship batch ordered from Russia's Yantar Shipyard under a 2018 inter-governmental agreement. Her sister ship, INS Tushil, was commissioned on 9 December 2024.

At roughly 125 metres long and displacing nearly 3,900 tonnes, INS Tamal carries one of the most potent weapon fits of any medium frigate in the world — led by the BrahMos supersonic cruise missile — and reinforces Indo-Russian defence cooperation at a time when India is rapidly building indigenous warships under Project 17A.

Talwar Class (Project 1135.6) — The Lineage

The Talwar class is an Indian-specific modification of the Russian Krivak III / Burevestnik family of frigates. The full order book now stands at ten ships in total, split across three tranches:

The first six frigates were purely imported. The final four were acquired under a hybrid model — two built in Russia with substantially higher Indian content, and two being built in India at Goa Shipyard Limited with Russian technology transfer.

Key Specifications of INS Tamal

Stealth Features

INS Tamal incorporates:

• Angled superstructure to reduce radar cross-section
• Radar-absorbing coatings
• Low infrared and acoustic signatures
• Internal exhaust routing for engines
• Minimised external protrusions and cable runs

Weapon Systems

The Talwar class punches well above its weight for a 4,000-tonne platform. INS Tamal's fit includes:

Offensive Weapons

• BrahMos supersonic cruise missile — 8-cell vertical launcher (UKSK), Mach 2.8, range 290–450 km depending on variant. This is the Indian replacement for the older Klub-N missiles used on the first tranche.
• Shtil-1 / Shtil-U vertical-launch surface-to-air missile system — 24-cell VLS, medium-range air defence (~70 km)
• 100 mm A-190E naval gun — primary gun, for anti-surface and shore bombardment
• 2 × AK-630M close-in weapon systems (CIWS) — 30 mm Gatling guns for short-range air and missile defence
• RBU-6000 anti-submarine rocket launcher
• 2 × twin 533 mm torpedo tubes — launching heavyweight torpedoes against submarines

Sensors and Electronic Systems

• Fregat-M2EM 3D air-search radar
• Ligand fire-control radar for gun and missile systems
• MGK-335 hull-mounted sonar
• Advanced electronic warfare and decoy systems
• Combat Management System integrated with Indian Navy networks

Aviation

INS Tamal carries a single Kamov Ka-28 anti-submarine helicopter or Ka-31 airborne early warning helicopter, with hangar and flight deck aft. The Indian Navy is also progressively introducing the indigenous HAL Dhruv NUH (Naval Utility Helicopter).

Russia-India Defence Cooperation

INS Tamal is a living example of one of the world's longest-running defence partnerships:

• The initial Project 1135.6 contract signed in 1997 has produced eight ships over 28 years
• Total cost of the third tranche (Tushil + Tamal) is estimated at roughly US$ 1 billion
• Around 26% indigenous content on Tushil and Tamal — the highest among the eight Russian-built ships
• Indian firms such as BrahMos Aerospace, BEL, Larsen & Toubro, Keltron, and Nova Integrated Systems supplied major subsystems
• Technology transfer allows Goa Shipyard Limited (GSL) to build two additional frigates (INS Triput, INS Tavasya) in India

Why INS Tamal Matters

1. Strengthens Blue-Water Capability

Tamal adds to the Indian Navy’s capacity to conduct sustained operations far from home ports — in the Indian Ocean Region (IOR), Persian Gulf, and beyond.

2. Carrier Group Escort

As a multi-role frigate, she escorts and protects India's aircraft carrier groups (INS Vikramaditya and INS Vikrant) against air, surface, and sub-surface threats.

3. BrahMos Deployment at Sea

Equipping Talwar-class ships with BrahMos turns a primarily anti-submarine platform into a credible land-attack and anti-ship strike asset, extending India's reach.

4. Fills Near-Term Capability Gap

India's indigenous frigate and destroyer programmes (Project 17A — Nilgiri class, Project 15B — Visakhapatnam class) are progressing but take years to deliver each hull. The Russian-built frigates plug the gap until full indigenous production matches demand.

5. Signals Continuing Indo-Russian Partnership

Despite Western sanctions on Russia, India's commitment to complete the two-ship order and accept delivery on time signals strategic autonomy in defence procurement.

Where INS Tamal Fits in the Fleet

The Indian Navy's current major surface combatants include:

UPSC Relevance

GS3 (Defence & Security): Naval modernisation, indigenous shipbuilding, India’s defence budget, Make in India in defence, Indo-Russian defence partnership.

GS2 (International Relations): India–Russia strategic partnership, arms trade under sanctions, strategic autonomy.

GS3 (Science & Technology): BrahMos missile, stealth design, integrated combat management systems.

Key Prelims facts:

• INS Tamal (F71) — commissioned 1 July 2025 at Kaliningrad, Russia
• Class: Talwar-class, Project 1135.6
• Builder: Yantar Shipyard, Russia
• Sister ship: INS Tushil, commissioned December 2024
• Displacement: ~3,900 tonnes; length: ~125 m
• Main weapon: BrahMos supersonic missile (8-cell VLS)
• Air defence: Shtil-1 SAM; CIWS: AK-630; gun: 100 mm A-190E
• Carries Kamov Ka-28/Ka-31 helicopter
• Home port: Karwar, Western Naval Command
• Eighth and last foreign-built Project 1135.6 frigate; next two (Triput, Tavasya) to be built at Goa Shipyard Limited

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