As a first step, demonstration trials were successfully conducted earlier this week in 500 metres depth off Chennai coast.
Four senior scientists of the NIOT in Chennai have landed in Kasaragod in search of a high-end weather observation buoy that went missing in deepsea in July.
A senior PPT officer admitted that vacancies in major posts have delayed infrastructure related activities but in-charge officials are handling cargo and other works.
Chief Scientist K Gopakumar told Express that the expedition started on March 20, meeting all the Covid protocols, on board the ship ORV Sagar Nidhi at Chennai Port.
The NIOT crew undertook a gruelling voyage onboard research vessel ORV Sagar Nidhi, traversing 1,700 nautical miles (about 3,000 km) to execute the complex mission.