India's Deep Sea Exploration Human Mission: Ahead Of Samudrayaan, Scientists Train In Atlantic Ocean
Close on the heels of Prime Minister Narendra Modi announcing from Red Fort that India will carry out deep sea exploration mission for oil and minerals, India sent its scientists to France this month to get international experience of the same in the Atlantic Ocean.
As part of the Indo-French partnership, Indian scientists from National Institute of Ocean Technology (NIOT), Chennai participated in deep-ocean human scientific expeditions onboard the submersible NAUTILE developed by the French marine institute IFREMER this month.
This has helped our scientists gain operational experience at the deep sea up to 5000 meters depth in the Atlantic Ocean and functional operations.
India has developed a human submersible (MATSYA-6000) which will soon carry three persons to a depth of 6000 meters, as part of the Deep Ocean Mission. MATSYA-6000 is designed to include scientific payloads to align with India's scientific exploration and observation activities for deep-sea living and non-living.
Progress of the mission
The wet harbour trials of MATSYA-6000 were successfully conducted in January-February 2025 at L&T Shipbuilding Facility in Katupalli, near Tamil Nadu.
The technological innovations developed for MATSYA-6000 include a bio-vest for real-time crew monitoring, a cognitive digital twin to support during emergency scenarios, an underwater acoustic telephone, ballast management system capable of operating from the submersible as well as a ship, a welded titanium alloy exo-structure, an 80 mm thick electron beam welded titanium alloy personnel sphere with multi-ring configuration and hydrostatically stable and hydrodynamically efficient subsystems with high density Lithium-Polymer-based main power system for propulsion.
The realisation of the titanium personnel sphere of MATSYA-6000 has been initiated as an indigenous effort with ISRO.
Sub-components such as the base frame and pressure cases are developed with Indian industry partners. The inertial navigation systems and integration with Global Positioning Systems, Doppler Velocity Logs, Depth and Acoustic Positioning Systems and an underwater acoustic telephone are undertaken with DRDO.
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