Sanshodhak Survey Vessel

Category: Defence & Maritime Security

  • INS Sanshodhak is the fourth and final Survey Vessel (Large) built for the Indian Navy under a four-ship project.
  • Built by Garden Reach Shipbuilders & Engineers (GRSE), Kolkata.
  • Delivered to the Indian Navy on 30 March 2026 and commissioned on 21 June 2026.
  • Designed for coastal and deep-water hydrographic surveys, including harbour approaches and navigational channels.
  • Also undertakes oceanographic and geophysical data collection.
  • Equipped with advanced systems such as Autonomous Underwater Vehicles (AUVs), Remotely Operated Vehicles (ROVs), sonar and hydrographic data-acquisition systems.
  • The four Survey Vessel (Large) ships are Sandhayak, Nirdeshak, Ikshak and Sanshodhak.
  • Supports maritime navigation, defence operations and India's Blue Economy.

Prelims Pointers: GRSE → Kolkata | Type → Survey Vessel Large | Final ship → Sanshodhak | Major role → Hydrography.