Quick answer: INS Brahmaputra (F31) is the lead ship of the Indian Navy’s indigenous Brahmaputra-class guided-missile frigates, built by GRSE Kolkata. On 4 November 2026 it was reported that the Navy has begun a court-martial of two of its officers over the July 2024 fire after which the frigate rolled onto its side at the Naval Dockyard, Mumbai. The trial is ongoing and no verdict has been given.
Why INS Brahmaputra is in the news
The Hindustan Times, quoting officials aware of the matter, reported that a naval court-martial against two officers of INS Brahmaputra opened in Mumbai on 12 October 2026. Other outlets, including Pragativadi and Aryan Age, carried the story on 4 November 2026. The two officers are the ship’s commanding officer, who holds the rank of Captain, and the officer of the day, a Lieutenant Commander.
The reports say the Captain has been charged with hazarding a naval ship and with negligence in performing his duties. The Lieutenant Commander faces a charge of negligence. In naval usage, “hazarding” means putting a ship in danger. These are allegations, and the accused can defend themselves. If convicted, the possible punishments range from a reprimand or loss of seniority up to two years in prison.
Key facts about INS Brahmaputra
| Parameter | Detail |
|---|---|
| Pennant number | F31 |
| Class | Lead ship of the Brahmaputra class of guided-missile frigates (a design developed from the Godavari class) |
| Builder | Garden Reach Shipbuilders and Engineers (GRSE), Kolkata |
| Launched / Commissioned | 29 January 1994 / 14 April 2000 |
| Displacement | About 3,850 tonnes |
| Length | About 125 metres |
| Crew | About 370, including 40 officers |
| Nickname | “The Raging Rhino” |
| Helicopters operated | Sea King and the Chetak-based anti-submarine helicopter |
It is the second Indian naval ship named after the Brahmaputra river. The first was a frigate commissioned in 1958.
What happened in July 2024
A major fire broke out on the frigate on the evening of 21 July 2024, while it was in the Naval Dockyard, Mumbai, for a refit. The ship’s own firefighting teams and dockyard crews worked through the night and had put the fire out by the next morning. Large amounts of water were pumped aboard during the firefighting. By the late afternoon of 22 July the ship had heeled over to port, and it was reported to be lying at an angle of about 40 to 45 degrees.
Most of the crew got off safely, but Leading Seaman Sitendra Singh drowned. A Rear Admiral was appointed to lead an inquiry. With help from foreign salvage specialists, the frigate was moved to a dry dock and brought upright by November 2024. Officials quoted in the latest reports say the ship has since been repaired and is now on trials. It is expected to be seaworthy again some time next year.
The then Navy chief, Admiral Dinesh K Tripathi, also set up a special task force under a Rear Admiral to review safety across naval vessels.
Earlier cases: INS Betwa and INS Sindhuratna
- INS Betwa (December 2016): During repairs at the same Mumbai dockyard, the frigate slipped off its dock blocks and toppled over. Two sailors were killed and 14 were injured. Three officers were court-martialled, and their punishments included a loss of seniority of four to six months.
- INS Sindhuratna (2014): After a fire on board this submarine, the then Navy chief, Admiral DK Joshi, resigned. A general court martial was recommended for the submarine’s commanding officer.
Exam angle: how NDA, CDS and CAPF can ask this
- Pennant numbers, ship classes and builders such as GRSE, MDL and GSL often appear in defence GK. Learn which shipyard built which class.
- Indian warships are often named after rivers. Brahmaputra, Betwa and Godavari are examples, so a question can link a river with a ship class.
- CDS and CAPF papers sometimes test terms from military justice, such as court-martial, board of inquiry and the equivalent ranks in the three services. A Navy Captain ranks with an Army Colonel.
Practice MCQs
Q1. INS Brahmaputra (F31) was built by which shipyard?
(a) Mazagon Dock Shipbuilders (b) Garden Reach Shipbuilders and Engineers (c) Goa Shipyard Limited (d) Cochin Shipyard Limited
Answer: (b) — GRSE, Kolkata built the lead ship of the Brahmaputra class.
Q2. In which year was INS Brahmaputra commissioned?
(a) 1994 (b) 1997 (c) 2000 (d) 2004
Answer: (c) — It was commissioned on 14 April 2000; it had been launched in 1994.
Q3. In naval terminology, the offence of “hazarding” a ship refers to:
(a) Deserting the ship (b) Putting the ship in danger (c) Losing classified documents (d) Refusing an order
Answer: (b) — Hazarding means endangering the vessel.
Q4. Which other Brahmaputra-class frigate toppled at the Mumbai Naval Dockyard in December 2016?
(a) INS Betwa (b) INS Godavari (c) INS Talwar (d) INS Shivalik
Answer: (a) — INS Betwa slipped off its dock blocks during repairs.
Frequently asked questions
Why is INS Brahmaputra in the news in November 2026?
The Indian Navy has begun a court-martial of two officers over the July 2024 fire and partial capsizing of the frigate at the Naval Dockyard, Mumbai. The proceedings reportedly began on 12 October 2026, and no verdict has been reported yet.
Who are the officers facing the court-martial?
The reports name them by appointment only: the ship’s commanding officer, a Captain, and the officer of the day, a Lieutenant Commander. The Captain is charged with hazarding the ship and with negligence. The Lieutenant Commander is charged with negligence.
What caused INS Brahmaputra to tilt in July 2024?
A fire broke out on board on 21 July 2024 during a refit. Large amounts of water were used to fight it, and the next day the ship heeled over to its port side. One sailor, Leading Seaman Sitendra Singh, drowned.
Is INS Brahmaputra back in service?
Not yet. Officials quoted in November 2026 said the frigate has been repaired and is on trials, and it is expected to be seaworthy again some time next year.
Also read on NCA: Indian Navy submarines, AIP and Project 75 | Next-generation corvettes (Project 28A) | Monthly defence current affairs PDFs | CDS coaching in Chandigarh
Sources: Aryan Age (citing Hindustan Times), TFIPost, Pragativadi, Wikipedia: INS Brahmaputra (1994). Facts as reported up to 6 November 2026.
Featured image background: Andrew Thomas from Shrewsbury, UK / Wikimedia Commons, CC BY-SA 2.0.
