INS Arnala -- an anti-submarine corvette -- touches the waters of Bay of Bengal - Broadsword by Ajai Shukla - Strategy. Economics. Defence.

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Tuesday 20 December 2022

INS Arnala -- an anti-submarine corvette -- touches the waters of Bay of Bengal

INS Arnala being launched at Katupalli Shipyard. This is the first of 16 anti-submarine warships being built indigenously


By Ajai Shukla
Business Standard, 21st Dec 22

Indian Navy Ship (INS) Arnala, the first of 16 anti-submarine warfare shallow water craft (ASW SWC) being built in India for the Indian Navy, was launched on Tuesday at Larsen & Toubro’s (L&T’s) Kattupalli shipyard near Chennai. 


Of the 16 ASW SWC on order, eight are being built by Garden Reach Shipbuilders and Engineers (GRSE) Kolkata, in partnership with L&T; and the other eight by Cochin Shipyard. The navy plans to have all 16 corvettes built and in service by 2026.


Industry sources say the cost of all 16 corvettes will be Rs 12,622 crore, or $ 1.6 billion. In 2022 exchange rates that comes to Rs 789 crore ($99 million) per vessel.


The Indian Navy’s need for shallow water anti-submarine craft stems from the peculiar nature of the Arabian Sea bed, which is extremely shallow even tens of nautical miles from the coast.


“The ship has been named INS Arnala to signify the strategic maritime importance accorded to the island of Arnala (located about 13 Km north of Vasai, Maharashtra) by the great Maratha warrior, Chhatrapati Shivaji Maharaj,” said a Ministry of Defence (MoD) statement, released on Tuesday.

“She [INS Arnala] made her first contact with water of Bay of Bengal at 10:40 hours at the launch ceremony graced by Rasika Chaube, Financial Adviser (Defence Services), MoD. In keeping with the Naval maritime tradition, Rasika Chaube launched the ship to the chanting of invocation from Atharva Veda,” announced the MoD.

A contract for building eight ASW SWC was signed between MoD and Garden Reach Shipbuilders & Engineers (GRSE), Kolkata on April 29, 2019. The new Arnala-class corvettes will replace the navy’s ageing Abhay class ASW ships.


According to the MoD, “The Arnala-class is designed to undertake anti-submarine operations in coastal waters and low intensity maritime operations (LIMO) including subsurface surveillance in littoral waters.”


The 77.6 metre-long Arnala-class ASW corvettes have a displacement of 900 tonnes, with a maximum speed of 25 knots and endurance of 1,800 nautical miles.

“Despite challenges due to COVID-19 pandemic, GRSE has made substantial progress on the ships of this project,” stated the MoD. 


“As part of the Prime Minister’s vision of Aatmanirbhar Bharat (self-reliant India, the ASW SWC corvettes will have over 80 per cent indigenous content, ensuring that large scale defence production is executed by Indian manufacturing units,” the MoD said.


  1. That GRSE built a warship in collab with L&T Kattupalli is a real gem of nugget hidden in this article. Had not come across this before. Hopefully, this will lead to greater and better utilisation of capabilities and synergies between public and private sector in warship building if the powers that be are shy of awarding large contracts outright to L&T even after the stupendous success of Vikram-class OPV construction contract.

    - Manne

  2. Shukla Ji, LCA MK2 ka status update dijiye.


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