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Brahmaputra-class
OngoingRestoration procurement remained active, with an INS Brahmaputra ship-systems flushing reverse auction concluding on 30 April 2026 at an L1 price of ₹60,98,913.
On 30 April 2026, a reverse auction for flushing INS Brahmaputra's steam, feed, distilled-water, chilled-water, fresh-water and fuel systems concluded with VATS Filtration Technologies ranked L1 at ₹60,98,913. A separate tender issued on 5 February sought renewal of the ship's auxiliary-cooling-water and bilge pipelines at Mumbai Naval Dockyard, confirming that restoration procurement remained active. Navy officials reported in May 2025 that repairs were in full swing, but no authoritative return-to-sea announcement had appeared by 13 July 2026. Sister ship INS Beas is separately undergoing the class's first steam-to-diesel mid-life upgrade, making the availability of these locally designed escorts important as India balances refits against growing Chinese and Pakistani fleet activity.
Updated 30 Apr 2026
Verified figures
Specifications
| Specification | Value |
|---|---|
| Displacement | 3,850 t full load ↗ |
| Dimensions | 126.4-126.5 m length × 14.5 m beam × 4.5 m draught ↗ |
| Powerplant (original configuration) | 2 × BHEL/Bhopal steam turbines producing 30,000 hp total; 2 × 550 psi boilers; 2 shafts ↗ |
| Propulsion upgrade (INS Beas) | Steam-to-diesel conversion under a ₹313.42 crore mid-life upgrade, scheduled for completion in 2026 ↗ |
| Maximum speed | More than 30 kn ↗ |
| Range | 4,500 miles at 12 kn ↗ |
| Anti-ship and air-defence armament | 16 × Kh-35 Uran anti-ship missiles; 24 × Barak SAMs ↗ |
| Guns and torpedoes | 1 × 76 mm gun; 4 × 30 mm AK-630 CIWS; 6 × 324 mm torpedo tubes ↗ |
| Sensors | RAWS-03 2D air/surface-search radar; RAWL-02 surveillance radar; Decca/BEL 1245 navigation radar; HUMSA hull sonar; Thales Sintra towed sonar ↗ |
| Aviation | 2 × Sea King helicopters, or 1 × Sea King plus 1 × Chetak ↗ |
Spec sources: bharat-rakshak.com ↗ · naval-technology.com ↗ · pib.gov.in ↗
Changelog
Program timeline
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A reverse auction for flushing INS Brahmaputra's steam, feed, distilled-water, chilled-water, fresh-water and fuel systems concluded with VATS Filtration Technologies ranked L1 at ₹60,98,913.
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The Indian Navy issued a Mumbai Naval Dockyard tender with an EMD of ₹30,34,829 for renewal of INS Brahmaputra's auxiliary-cooling-water and bilge pipelines.
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Navy officials said repairs to INS Brahmaputra were in full swing and projected a float-and-move phase by end-2025 or early 2026 and restoration of the fight component by June-July 2026.
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INS Brahmaputra was placed in dry dock at Mumbai after being brought upright on 2 November, enabling detailed damage assessment and initial repairs.
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The Navy recovered the body of Leading Seaman Sitendra Singh at Mumbai Naval Dockyard and directed immediate work to restore INS Brahmaputra after the 21 July fire.
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A fire broke out aboard INS Brahmaputra during refit at Mumbai Naval Dockyard; it was controlled by the morning of 22 July, but the ship listed heavily to port.
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The Navy disclosed that INS Beas's approximately two-year steam-to-diesel mid-life upgrade had begun at Cochin Shipyard in early April 2024.
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The Ministry of Defence signed a ₹313.42 crore contract with Cochin Shipyard for INS Beas's mid-life upgrade and steam-to-diesel conversion, with completion planned in 2026.
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INS Beas, the third Brahmaputra-class frigate, was commissioned.
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INS Betwa, the second Brahmaputra-class frigate, was commissioned.
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INS Brahmaputra, the lead ship of the class, was commissioned.
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