- It is the 4th of the Survey Vessels launched under the SVL (Survey Vessels Large) Project.
- The name ‘Sanshodhak’ means ‘researcher’.
- 110 m long
- 16 m wide
- Displacement: 3,400 tons
- Hull is made from DMR 249-A steel- an indigenously developed steel from SAIL (Steel Authority of India Limited)
- New generation hydrographic equipment
- Capacity to carry:
- 4 Survey Motor Boats
- An integral helicopter
- > 80% indigenous content by cost
- These vessels are to replace the existing ships of the Sandhayak Class.
- Will be undertaking hydrographic surveys- both coastal and deep-water- of ports and navigational channels.
- Will be collecting oceanographic and geophysical data for purposes- civilian and defence.
- Secondary role include:
- Limited defence capabilities
- Hospital ship
- Built by L&T/ GRSE.
- The contract for building 4 SVL ships was concluded between the Defence Ministry and GRSE (Garden Reach Shipbuilders & Engineers), Kolkata, in 2018.
- The 1st 3 vessels are:
- Sandhayak- launched in 2021
- Nirdeshak- launched in 2022
- Ikshak- launched in 2022
- Built for the Indian Navy.
- Launched at Kattupalli, Chennai.