The indigenously developed manned underwater submersible vehicle capable of taking three humans to a depth of 6,000 m, Matsya 6000, will be ready as originally planned for its launch in 2024 for the Samudrayaan Mission, the National Institute of Ocean Technology (NIOT) said on 22 February 2022.


  1. The manned submersible, designed to carry three people in 2.1 meter diameter Titanium Alloy Personnel Sphere, is being developed by the Ministry of Earth Sciences and NIOT, Chennai, under the aegis of Deep Ocean Mission.
  2. It will have an operational endurance of 12h and systems to support emergency endurance up to 96h for deep ocean exploration of non-living resources such as polymetallic manganese nodules, gas hydrates, hydro-thermal sulphides and cobalt crusts, located at a depth between 1,000 and 5,500 meters.
  3. In October last year, Union Minister of State, Science & Technology and Earth Sciences Jitendra Singh launched India's first and unique manned Ocean Mission Samudrayaan.
  4. Sea trials of 500 metre rated shallow water version of the manned submersible are expected to take place in the last quarter of 2022 and the Matsya 6000, the deep water manned submersible will be ready for trials by second quarter of 2024.