INS Arnala’s Historic Launch: Indian Navy’s Blueprint for a Stronger Coastline!


On June 18, 2025, the Indian Navy marked a pivotal moment in its journey toward maritime dominance with the commissioning of INS Arnala, the first of 16 Anti-Submarine Warfare Shallow Water Craft (ASW-SWC) vessels, at the Naval Dockyard in Visakhapatnam. Named after the historic Arnala Fort off Maharashtra’s Vasai coast, this 77-meter warship is not just a vessel but a symbol of India’s resolve to fortify its 7,516-kilometer coastline against undersea threats. Built indigenously by Garden Reach Shipbuilders and Engineers (GRSE) in Kolkata under a public-private partnership with Larsen & Toubro (L&T), INS Arnala embodies the Navy’s vision of self-reliance under the Aatmanirbhar Bharat initiative. With over 80% indigenous content and cutting-edge technology, its launch heralds a new era of coastal defense, setting a blueprint for a stronger, more secure maritime frontier.
A Strategic Leap in Coastal Defense
INS Arnala is purpose-built to counter the growing subsurface threats in India’s coastal waters, where enemy submarines could lurk in depths as shallow as 50–60 meters to target strategic ports and offshore assets. Unlike larger frigates or destroyers, which focus on offensive roles, the Arnala-class vessels are defensive specialists, designed for sub-hunting in littoral zones. Equipped with advanced underwater sensors like the Hull-Mounted Sonar Abhay, Low-Frequency Variable Depth Sonar (LFVDS), and an Integrated ASW Complex (IAC), INS Arnala can detect, track, and neutralize stealthy submarines at stand-off ranges. Its arsenal includes lightweight torpedoes, ASW rockets, anti-torpedo decoys, and a 30mm Naval Surface Gun (NSG) for close-in defense, making it a versatile platform for coastal security.
The ship’s mine-laying capabilities add another layer of strategic depth, allowing it to disrupt enemy naval movements in chokepoints like the Strait of Hormuz or the Malacca Strait. With a draught of just 2.7 meters, INS Arnala can navigate shallow waters inaccessible to larger warships, ensuring comprehensive surveillance and protection of India’s 16 major ports. As Chief of Defence Staff General Anil Chauhan noted during the commissioning, “INS Arnala’s specialized sensors and weapons make it a force enabler, safeguarding our coastline while allowing larger assets to pursue broader objectives.” This strategic focus underscores the Navy’s plan to deploy all 16 ASW-SWCs to create an anti-submarine shield along the coast by 2026, replacing the ageing Abhay-class corvettes commissioned in 1989.
A Triumph of Indigenous Engineering
INS Arnala’s commissioning is a testament to India’s growing prowess in defense manufacturing. Constructed under a ₹12,622 crore program, the vessel boasts over 80% indigenous content, integrating systems from Indian defense giants like Bharat Electronics Limited (BEL), Mahindra Defence, and MEIL. Its diesel engine-waterjet propulsion system, a first for an Indian naval warship of its size, delivers a top speed of 25 knots and exceptional maneuverability, critical for coastal operations. The 77.6-meter-long, 1,490-tonne vessel, with a crew of 57 including seven officers, is designed for underwater surveillance, search and rescue, and low-intensity maritime operations (LIMO) like anti-smuggling patrols.

The ship’s construction through a public-private partnership between GRSE and L&T’s Kattupalli shipyard marks a departure from traditional Navy-led designs. Delivered on May 8, 2025, INS Arnala was built to the Indian Register of Shipping (IRS) standards, showcasing collaborative innovation. Vice Admiral Rajesh Pendharkar, Flag Officer Commanding-in-Chief of the Eastern Naval Command, hailed it as “a purpose-built platform to counter stealthy, fast-moving submarine threats, protecting our maritime choke points.” The Navy’s social media post on X, captioned “From Blueprint to Warship,” highlighted the meticulous journey of its creation, resonating with national pride.
Rooted in Maritime Heritage
INS Arnala’s name carries deep historical significance, drawing from the Arnala Fort, also known as Jaldurg, built by the Portuguese in 1530 and rebuilt by Maratha leader Chimaji Appa in 1737. Strategically located at the Vaitarna River’s mouth, the fort guarded the northern Konkan coast against invasions, much like INS Arnala now defends India’s shores. The ship’s crest, featuring a stylized auger shell, symbolizes resilience in hostile environments, while its Sanskrit motto, Arnave Shauryam (“Valour in the Ocean”), reflects the crew’s courage. This nod to maritime heritage aligns with the Navy’s tradition of naming vessels after historic forts and islands, reinforcing India’s seafaring legacy.
The commissioning ceremony, attended by senior officials, former commanders of the erstwhile INS Arnala (a Petya-class submarine chaser from 1972–1999), and industry representatives, was a celebration of continuity and progress. General Chauhan emphasized the Navy’s transition from a “buyer’s Navy” to a “builder’s Navy,” noting that India now constructs everything from stealth frigates to nuclear submarines. With 64 vessels under construction as of January 2025, including destroyers, corvettes, and submarines, the Navy’s shipbuilding boom positions India as a global maritime powerhouse.
Geopolitical Context: Countering Regional Threats
INS Arnala’s induction comes at a critical juncture, with rising tensions in the Indian Ocean Region (IOR). China’s People’s Liberation Army Navy (PLAN) has expanded its presence, deploying submarines and survey vessels near India’s Andaman and Nicobar Islands. Pakistan, with its Agosta 90B and Hangor-class submarines, relies heavily on undersea warfare due to its limited surface fleet. INS Arnala’s ability to neutralize these threats in coastal waters frees up larger Indian assets like INS Vikrant or Nilgiri-class frigates for offensive operations. Naval sources highlight its strategic relevance: “Pakistan’s submarines must navigate shallow littoral zones to fire torpedoes effectively. Arnala is engineered to engage them at safe distances, protecting high-value targets.”
The ship’s delivery during Operation Sindoor, a period of heightened regional tensions, underscores the Navy’s operational readiness and industrial capacity. Its integration into the Eastern Naval Command, responsible for the Bay of Bengal and Andaman Sea, strengthens India’s maritime posture against potential adversaries. As part of a broader ₹3 lakh crore modernization drive, the Navy plans to induct 9–10 warships by December 2025, with INS Arnala leading the charge.
Challenges and Future Prospects
While INS Arnala’s launch is a milestone, challenges remain. Scaling up production to deliver all 16 ASW-SWCs by 2026 requires seamless coordination between GRSE, Cochin Shipyard Limited (building the next eight vessels), and private partners. The Navy must also ensure adequate training for crews to operate advanced systems like the LFVDS and IAC. Some analysts on X have raised concerns about maintenance logistics for waterjet propulsion, a relatively new technology for Indian warships, though GRSE’s expertise in building Kamorta-class corvettes mitigates these risks.
Looking ahead, INS Arnala sets a precedent for future ASW-SWCs, with a second vessel slated for commissioning later in 2025. The Navy’s plan to deploy these ships across major ports like Mumbai, Chennai, and Kochi will create a robust coastal defense network, complementing offshore assets like INS Vikrant and P-8I Poseidon aircraft. By partnering with maritime patrol aircraft, INS Arnala enhances India’s multi-domain warfare capabilities, ensuring a cohesive response to subsurface threats.
A Blueprint for Maritime Excellence
INS Arnala’s historic launch is more than a naval commissioning—it’s a blueprint for India’s maritime future. By blending indigenous innovation, strategic foresight, and historical pride, the Indian Navy is crafting a formidable coastal shield. As Cmde P.R. Hari (Retd), Chairman and MD of GRSE, stated, “INS Arnala showcases our ability to build world-class warships that meet the Navy’s exacting standards.” The vessel’s role in safeguarding India’s maritime interests, from trade routes to offshore oil rigs, reinforces its status as a national asset.
For India, a nation with 1.1 million square kilometers of Exclusive Economic Zone, INS Arnala is a clarion call to assert its maritime destiny. As the Navy tweeted, “Witness the rise of Arnala—a symbol of Aatmanirbhar Bharat and maritime excellence.” With its advanced capabilities and homegrown spirit, INS Arnala not only strengthens India’s coastline but also charts a course for a self-reliant, blue-water Navy ready to navigate the challenges of the 21st century.
Last Updated on: Thursday, June 19, 2025 7:13 pm by Charan Sai Reddy | Published by: Charan Sai Reddy on Thursday, June 19, 2025 7:10 pm | News Categories: India
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