Indian Navy’s INS Dunagiri Stealth Frigate.
New Delhi/Kolkata/Kochi, March 30–31, 2026 — In a powerful demonstration of its growing shipbuilding capability and operational readiness, the Indian Navy inducted four indigenously built warships within a span of just 48 hours, marking one of the most significant fleet expansions in recent years.
The back-to-back deliveries—comprising a stealth frigate, a large survey vessel, and two anti-submarine warfare shallow water craft—underscore India’s accelerating push toward defence self-reliance while strengthening its maritime posture across multiple operational domains.
Four Platforms, One Strategic Push
The centerpiece of the inductions is ‘Dunagiri’, a stealth frigate delivered on March 30 at Kolkata by Garden Reach Shipbuilders & Engineers. As the fifth ship under Project 17A and part of the Nilgiri-class, Dunagiri represents a generational leap in warship design, combining stealth, firepower, and advanced automation.
A modern successor to the original INS Dunagiri, the frigate is equipped with BrahMos surface-to-surface missiles, MFSTAR radar, and the MRSAM air defence system, alongside anti-submarine warfare capabilities. Its Combined Diesel or Gas propulsion system and integrated platform management technologies enhance both performance and survivability. With around 75% indigenous content and contributions from over 200 MSMEs, the vessel highlights the scale and maturity of India’s domestic defence ecosystem.
Delivered alongside Dunagiri on the same day was ‘Sanshodhak’, the fourth and final Survey Vessel (Large) in a series built under a 2018 contract. Also constructed by GRSE and designed by the Navy’s Warship Design Bureau, the vessel is tailored for hydrographic and oceanographic missions.
At 110 meters long and displacing approximately 3,400 tons, Sanshodhak is equipped with advanced survey systems including autonomous underwater vehicles, remotely operated vehicles, and high-resolution sonar. These capabilities enable detailed mapping of seabeds and navigational routes, supporting both military operations and civilian maritime infrastructure.
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Indian Navy’s INS Sanshodhak Large Survey Vessel.
Strengthening Coastal Defence in Parallel
While Kolkata witnessed the delivery of two major platforms, Kochi saw the induction of ‘Malwan’ on March 31, built by Cochin Shipyard Limited. The vessel is the second in a series of eight Anti-Submarine Warfare Shallow Water Craft (ASW SWC), designed for operations in coastal and littoral environments.
Measuring approximately 80 meters and displacing 1,100 tons, Malwan is equipped with advanced sonar systems, torpedoes, and anti-submarine rocket launchers. Named after the historic town of Malwan—linked to the maritime legacy of Chhatrapati Shivaji Maharaj—the ship continues a tradition of preserving distinguished naval names.
Just a day earlier, on March 30, GRSE delivered another ASW craft, ‘Agray’, the fourth in the same class. At around 77 meters in length, Agray is among the largest Indian naval vessels powered by waterjet propulsion, offering high maneuverability in shallow waters.
Equipped with lightweight torpedoes, indigenous rocket launchers, and shallow-water sonar, Agray significantly enhances the Navy’s ability to detect and counter underwater threats, as well as conduct mine warfare and coastal surveillance.
Indian Navy’s INS Agray.
A Coordinated Expansion Across Domains
The induction of four distinct platforms in such a short timeframe highlights a coordinated and multi-dimensional approach to naval capability development. Each vessel serves a specific operational role—Dunagiri for blue-water combat, Sanshodhak for hydrographic intelligence, and Malwan and Agray for coastal and anti-submarine warfare.
Together, they strengthen the Navy’s ability to operate seamlessly across deep-sea, littoral, and near-shore environments—an increasingly critical requirement in the strategically important Indian Ocean Region.
Aatmanirbhar Bharat in Action
A defining feature across all four vessels is the high level of indigenous content, ranging from 75% to over 80%. This reflects the tangible progress of the government’s Aatmanirbhar Bharat initiative in defence manufacturing.
The projects have involved extensive participation from domestic industries, including hundreds of MSMEs, contributing not only to technological advancement but also to employment generation and supply chain resilience.
The compressed timelines—particularly in the construction of Dunagiri compared to earlier ships in its class—demonstrate increasing efficiency and expertise within India’s shipbuilding sector.
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Indian Navy’s INS Malwan.
Strategic Implications
As regional security dynamics evolve, the rapid induction of these warships sends a strong signal about India’s maritime ambitions and preparedness. Enhanced anti-submarine capabilities are especially relevant amid growing underwater threats, while advanced frigates extend the Navy’s reach and deterrence capability.
Meanwhile, platforms like Sanshodhak ensure that the Navy retains a technological edge in mapping and understanding the maritime domain—an often overlooked but critical aspect of naval operations.
The delivery of four warships in just two days marks more than a numerical achievement—it represents a maturing defence industrial base capable of delivering complex, mission-ready platforms at scale.
With several indigenous programs underway, the Indian Navy is expected to continue expanding and modernizing its fleet at pace. The successful induction of Dunagiri, Sanshodhak, Malwan, and Agray stands as a clear indicator that India is steadily advancing toward becoming a self-reliant and formidable maritime power.
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