Context:
Prime Minister Narendra Modi recently commissioned three frontline naval vessels “INS Dunagiri, INS Sanshodhak, and INS Agray” at the Syama Prasad Mookerjee Port in Kolkata. The tri-commissioning marks a milestone in India’s transition towards a modern, self-reliant blue-water navy under the Aatmanirbhar Bharat initiative.
About the Inducted Vessels:
The three vessels have been designed by the Indian Navy’s Warship Design Bureau and built by Garden Reach Shipbuilders and Engineers (GRSE), Kolkata, with over 75% indigenous content and extensive MSME participation.
About INS Dunagiri – Stealth Guided Missile Frigate:
INS Dunagiri is a Project 17A stealth frigate, representing a new generation of multi-role warships. It is designed for high-intensity surface combat operations, including anti-ship, anti-air, and anti-submarine warfare roles.
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- Key features:
- Advanced stealth design with reduced radar signature
- Equipped with modern sensor suites and integrated combat management systems
- Capable of operating in both blue-water and littoral zones
- Designed for multi-dimensional warfare including surface and aerial threats
- It is part of a series of advanced frigates that significantly enhance the Navy’s strike and escort capabilities.
- Advanced stealth design with reduced radar signature
- Key features:
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About INS Sanshodhak – Large Hydrographic Survey Vessel:
INS Sanshodhak is a Survey Vessel (Large) designed primarily for hydrographic and oceanographic mapping.
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- Key features:
- Advanced sonar and underwater mapping systems
- Used for surveying ports, channels, and Exclusive Economic Zones (EEZ)
- Equipped for oceanographic data collection and maritime research
- Supports naval navigation safety and coastal infrastructure planning
- Advanced sonar and underwater mapping systems
- Often described as a “floating ocean laboratory,” it enhances India’s Maritime Domain Awareness (MDA) and supports both defence and civilian applications.
- Key features:
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About INS Agray – Anti-Submarine Warfare Shallow Water Craft:
INS Agray is designed for littoral (coastal) anti-submarine warfare operations.
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- Key features:
- Optimised for detection and neutralisation of submarines in shallow waters
- Equipped with lightweight torpedoes and advanced sonar systems
- Designed for coastal defence and harbour security
- Optimised for detection and neutralisation of submarines in shallow waters
- Enhances protection against underwater threats in India’s near-sea regions
- Key features:
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Strategic Significance:
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- Strengthening coastal and blue-water security amid rising Indo-Pacific naval competition
- Enhancing self-reliance in defence manufacturing under Make in India
- Improving multi-domain maritime capabilities (surface, sub-surface, and survey operations)
- Boosting India’s role in regional maritime stability and ocean governance
- Strengthening coastal and blue-water security amid rising Indo-Pacific naval competition
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Conclusion:
The simultaneous induction of INS Dunagiri, INS Sanshodhak, and INS Agray reflects India’s evolving naval doctrine—shifting from platform acquisition to integrated, technology-driven maritime power. It also underscores the strategic importance of indigenous shipbuilding in ensuring long-term security, economic growth, and geopolitical influence in the Indian Ocean Region.

