Strengthening the Blue Water Navy
- 03 Apr 2026
In News:
Recently, Garden Reach Shipbuilders and Engineers Ltd (GRSE) achieved a significant milestone by delivering three frontline naval platforms—INS Dunagiri, INS Sanshodhak, and INS Agrayto the Indian Navy in a single day. This achievement brings GRSE’s total warship count to 118, with 80 delivered specifically to the Indian Navy, underscoring the shipyard's role in India's indigenous defense ecosystem.
INS Dunagiri: The Stealth Vanguard (Project 17A)
The INS Dunagiri is the second of three Advanced Stealth Frigates built by GRSE under Project 17A (Nilgiri-class). It is a reincarnation of the erstwhile Leander-class frigate that served from 1977 to 2010.
- Specifications: A 149-meter long, 6,670-tonne vessel.
- Propulsion: Utilizes a Combined Diesel or Gas (CODOG) system for high-speed intercepts and long-endurance patrols.
- Offensive Power: Armed with BrahMos supersonic cruise missiles for precision land and sea strikes.
- Defense & Sensors: Features an Advanced AESA radar and an integrated combat management system (CMS).
- Strategic Role: Designed for multi-dimensional warfare, it can engage threats across air, surface, and sub-surface domains simultaneously.
INS Sanshodhak: The Hydrographic Pioneer (Survey Vessel – Large)
INS Sanshodhak (meaning "Researcher") is the fourth and final vessel in the Survey Vessel (Large) class, replacing the older Sandhayak-class ships.
- Primary Mission: To conduct full-scale hydrographic surveys of ports, harbors, and deep-sea navigation channels.
- Capabilities: Equipped with advanced Autonomous Underwater Vehicles (AUVs) and Remotely Operated Vehicles (ROVs) to collect geophysical and oceanographic data.
- Secondary Roles: Its versatile design allows it to function as a Hospital Ship during Humanitarian Assistance and Disaster Relief (HADR) missions and carry out limited combat roles.
INS Agray: The Littoral Warrior (ASW Shallow Watercraft)
INS Agray is the fifth ship of the Arnala-class, specifically designed for Anti-Submarine Warfare (ASW) in littoral (coastal) waters.
- Indigenous Prowess: Boasts approximately 88% indigenous content, including a GRSE-built 30 mm naval surface gun.
- Weaponry: Features lightweight torpedoes and ASW rockets specifically tuned for shallow-water threats.
- Agility: Powered by waterjet propulsion with a shallow draught of only 2.7 meters, allowing it to operate in coastal areas where larger frigates cannot navigate.
Comparison of Key Features
|
Vessel |
Class/Project |
Primary Role |
Key Technology |
|
INS Dunagiri |
Project 17A Frigate |
Multi-role Combat |
Stealth Design & CODOG |
|
INS Sanshodhak |
Survey Vessel (Large) |
Mapping & HADR |
Hydrographic Data Suite |
|
INS Agray |
ASW SWC |
Coastal Defense |
Waterjet Propulsion |