Fourth Survey Vessel (Large) ‘Sanshodhak’ Delivered To Indian Navy At Grse Kolkata

Indian Navy Inducts Final Survey Vessel (Large) ‘Sanshodhak’, Completing Four-Ship Project

Sanshodhak (Yard 3028), the last Survey Vessel (Large) ship steered by the Indian Navy’s Warship Design Bureau, being built at Garden Reach Shipbuilders & Engineers Ltd (GRSE), Kolkata was delivered to the Indian Navy on 30 Mar 2026.

The contract for four Survey Vessel (Large) ships was signed on 30 Oct 2018. The previous ships of the same class, INS Sandhayak, INS Nirdeshak and INS Ikshak were commissioned on 03 Feb 2024, 18 Dec 2024 and 06 Nov 2025, respectively.

The SVL ships are designed and built as per classification rules of Indian Register of Shipping by M/s Garden Reach Shipbuilders & Engineers Ltd (GRSE), Kolkata. The ship is capable of full-scale coastal and deep-water Hydrographic survey of port/Harbour approaches and determination of navigational channels/ routes. The ship’s role also includes collecting oceanographic and geophysical data for defence and civil applications.

With a displacement of about 3400 tons and an overall length 110 meters, Sanshodhak is fitted with state-of-the-art hydrographic equipment such as Data Acquisition and Processing System, Autonomous Underwater Vehicle, Remotely Operated Vehicle, DGPS long-range positioning systems, Digital Side Scan Sonar, etc. Powered by two diesel engines, the ship can achieve speeds in excess of 18 knots.

Keel of the ship was laid in Jun 22 and the ship was launched in Jun 23. The ship has undergone a comprehensive schedule of trials in harbour and at sea prior to its delivery.

Sanshodhak has an indigenous content in excess of 80% by cost. The delivery of Sanshodhak is a testimony to the relentless efforts of the Government of India and the Indian Navy towards Aatmanirbhar Bharat and is a tribute to the collaborative efforts of a large number of stake holders, MSMEs and the Indian industry in enhancing the maritime prowess of the nation in the Indian Ocean Region.