Sanshodhak: Fourth Survey Vessel (Large) Delivered to Navy
Why in the news
GRSE handed Sanshodhak to the Navy on 30 March 2026, closing the Survey Vessel (Large) project and the contract of October 2018.
Key facts
- Builder: Garden Reach Shipbuilders and Engineers (GRSE), Kolkata; yard 3028.
- Size: 110 m long, 16 m beam, about 3,400 tonnes.
- Propulsion: two diesel engines, speed above 18 knots, range 6,500 nautical miles.
- Crew: 18 officers, 160 sailors; hangar and flight deck for one Advanced Light Helicopter (ALH).
| Ship | Delivered |
|---|---|
| INS Sandhayak | February 2024 |
| INS Nirdeshak | December 2024 |
| INS Ikshak | November 2025 |
| Sanshodhak | 30 March 2026 |
Capabilities
- Coastal and deep-water hydrographic surveys of port approaches and channels.
- AUV and ROV for precise seabed mapping; digital side scan sonar and DGPS.
- Data serves defence (submarine navigation, amphibious operations) and civil needs (trade, ports).
Exam angle
- Builder: GRSE, Kolkata; contract year 2018.
- Related terms: hydrography, AUV, ROV, DGPS.