India's first manned expedition to send people 6,000 metres under the ocean was the Samudrayaan mission.

India has launched the massive ocean mission Samudrayaan to explore the mysteries in the deep sea . The country wants to send a team of experts into the deep sea to carry out various deep underwater surveys .

New Delhi (India), August 6: India has launched the massive ocean mission Samudrayaan to explore the mysteries in the deep sea waters.The country wants to send a team of experts into the deep sea to carry out various deep underwater surveys.The Samudrayaan project aims to develop a self-propelled manned submarine capable of carrying three people to a water depth of 6,000 meters in the water with a set of scientific sensors and instruments for deep ocean exploration.It has a 12-hour service life and 96 hours in the event of an emergency, and it will allow scientific personnel to observe and understand unexplored deep-sea areas by direct intervention.

The Government of India's scheme of New India emphasizes the Blue Economy as one of the ten main growth factors.For the deep sea exploration of non-living materials such as polymetallic manganese nodules, gas hydrates, hydro-thermal sulphides, and cobalt crusts, India has established a 6000-meter scale rated Remotely Operated Vehicle (ROV) and a variety of other underwater instruments such as Autonomous Coring System (ACS Oceans, which cover 70% of the globe, are also a key component of our daily life.About 95 percent of the Deep Ocean is undiscovered.India is a major economic powerhouse with three sides surrounded by the oceans and 30 percent of the country's population residing in coastal areas and coastal regions.

The preliminary design has been completed, and the construction has been started with help from several organizations, including ISRO, IITM, and DRDO, according to the Union Minister.The Ministry of Earth Sciences (MoES) will be supported by the underwater vehicles used for deep sea exploration, including high resolution bathymetry, biodiversity mapping, geo-scientific research, surveying, and engineering support.Despite the fact that unmanned underwater vehicles have improved manoeuvring and excellent vision systems that mimic real-time observation, a manned submersible gives researchers the feel of being in a physical setting and has greater intervention capability.With the advancement of subsea technologies, the Indian government has granted the Deep Ocean Mission (DOM) to be conducted under the supervision of the Ministry of Earth Sciences with a total budget of Rs 4,077 crore for a five-year period.

The Deep Ocean Mission will be a mission mode initiative funded by the Government of India's Blue Economy Initiatives, which will include the manufacturing of a 6,000-meter deep-water submersible, as well as techniques for deep-sea mining, deep-sea mineral exploration, and marine biodiversity.The Ti Alloy Personnel Sphere, Low-density buoyancy modules, and The Ballast and Trim System are some of the key subsystems of theFor man-rated use of a manned submersible at a depth of 6000 meters, pressure compensated batteries and propulsion system, monitoring and communications systems, and a Launching and Recovery System are designed, implemented, and tested.The system's design, operation, subcomponents function and integrity, emergency rescue, and failure mode analysis are reviewed and approved by the International Association of Classification and Certification Society.