Deep Ocean Mission (Samudrayaan and Matsya-6000)
Current Affairs & Government Schemes › National Missions and Flagship Programmes · Topic 19.11
The Deep Ocean Mission (DOM) is a mission of the Ministry of Earth Sciences approved by the Union Cabinet on 16 June 2021 with an outlay of Rs 4,077 crore for five years, to explore and use the deep ocean for resources and technology as part of the Blue Economy. Its flagship is Samudrayaan, India's first crewed deep-sea submersible project, whose vehicle Matsya-6000 is designed to carry three people to 6,000 metres. The National Institute of Ocean Technology (NIOT), Chennai, builds it with support from ISRO. Other parts cover deep-sea mining technology, ocean climate services, biodiversity, and ocean energy.
5 min read · UPSC Prelims · Current Affairs & Government Schemes · National Missions and Flagship Programmes
At a Glance
- Approved 16 June 2021, Union Cabinet
- Outlay Rs 4,077 crore over five years
- Nodal ministry Ministry of Earth Sciences
- Implementing institute NIOT, Chennai, for submersible and mining technology
- Flagship Samudrayaan: Matsya-6000, three persons, 6,000 m
- Exam link UPSC Prelims, Current Affairs and Government Schemes: National Missions and Flagship Programmes
Where Does It Fit?
This topic is the second science mission of the macro. It links ocean science, resource security and strategy in the Indian Ocean. It is close in spirit to the National Critical Mineral Mission, since seabed nodules are a possible source of the same metals. Previous topic: National Quantum Mission. Next topic: National Critical Mineral Mission.
What Are the Six Components of the Deep Ocean Mission?
| Component | Content |
|---|---|
| Deep sea mining and manned submersible | Technologies for mining polymetallic nodules, an underwater robotic system, and the crewed submersible Matsya-6000 |
| Ocean climate change advisory services | Models and observations to forecast sea level, ocean state and climate changes |
| Deep-sea biodiversity | Technological innovation for exploration and conservation of deep-sea life |
| Deep ocean survey and exploration | Search for hydrothermal sulphides and other resources in the Indian Ocean |
| Energy and freshwater from the ocean | Studies for offshore ocean thermal energy conversion, and a desalination plant powered by it |
| Advanced marine station for ocean biology | A research facility to build capacity in marine biology and related industry |
What Is Samudrayaan and Matsya-6000?
- Meaning: Samudrayaan means ocean vehicle. It is the Indian project to send humans to the deep sea for science
- Matsya-6000: a submersible being built by NIOT to carry three people to a depth of 6,000 metres, with a titanium alloy personnel sphere
- ISRO role: the Vikram Sarabhai Space Centre helped weld and build the titanium sphere
- Depth pressure: at 6,000 metres the pressure is about 600 times that at the surface, so the design calls for a very strong sphere
- Companion vehicles: a remotely operated vehicle called ROSUB 6000 and a deep-sea mining prototype have been tested to great depths
- Reported schedule: NIOT said in 2025 that the crewed mission would be launched by the end of 2026 after shallow trials. Reports of 2026 describe harbour trials and a planned dive to about 500 metres. A 6,000 metre crewed dive had not been reported by the sources checked
- Global comparison: only a few countries, among them the United States, Russia, France, Japan and China, have crewed deep submersibles
- Purpose: scientific survey of the seabed, collection of samples, and testing of technology for nodule mining
What Else Should You Remember?
- Polymetallic nodules: potato-sized lumps on the seabed with nickel, cobalt, copper and manganese. India has an exploration area of about 75,000 square kilometres in the Central Indian Ocean Basin under a contract with the International Seabed Authority
- Sulphides: India also has a 15-year contract from 2016 for exploration of polymetallic sulphides in an area of 10,000 square kilometres on the Indian Ocean ridges
- International Seabed Authority: a body created under the United Nations Convention on the Law of the Sea that regulates activity in the seabed beyond national jurisdiction, called the Area
- Blue Economy: the use of ocean resources for growth with care for ocean health. Deep Ocean Mission is one pillar of the Government vision for it
- Link to minerals: nodules are a possible source of critical minerals, as in National Critical Mineral Mission, but commercial deep-sea mining rules are not yet finalised internationally
- Environmental concern: mining can destroy seabed habitats and create sediment plumes, and scientists call for caution
- Status of the mission: the approved period was 2021 to 2026, so check for a decision on extension. Some components such as ocean climate services and surveys are further along than the crewed submersible
- Other deep sea capacity: the Ministry of Earth Sciences also runs the Ocean Services, Modelling, Application, Resources and Technology scheme, which is a separate umbrella
- Compare with space: just as Gaganyaan sends humans to space, Samudrayaan sends them to the deep sea. They are different missions run by different ministries
- Technology sibling: like the National Quantum Mission, it is a long-horizon science mission, as in National Quantum Mission
Why Does It Matter for the Exam?
- Approval: 16 June 2021, Rs 4,077 crore, five years, Ministry of Earth Sciences
- Samudrayaan: crewed submersible Matsya-6000, three persons, 6,000 m
- Implementing institute: National Institute of Ocean Technology, Chennai
- Resources: polymetallic nodules and sulphides under International Seabed Authority contracts
- Common errors: giving ISRO as the nodal agency, or confusing Samudrayaan with Gaganyaan
As an analytical point, the mission builds capacity in ocean technology and gives India a voice on rules for the seabed. Its value depends on delivering the crewed vehicle safely, and on balancing mining ambitions with strong environmental safeguards.
Why Is This Topic Important?
- Science Ocean technology
- Resources Nodules and sulphides
- Facts Outlay, ministry, vehicle
What Came Next?
The next topic covers the National Critical Mineral Mission. Next topic: National Critical Mineral Mission.
Key People and Terms
- DOM Deep Ocean Mission
- NIOT National Institute of Ocean Technology
- ROSUB Remotely operated submersible
- Polymetallic nodules Metal-rich lumps on seabed
- ISA International Seabed Authority
- Blue Economy Sustainable use of ocean resources
Exam Corner
Points to Remember
- Approved 16 June 2021, Rs 4,077 crore.
- Nodal: Ministry of Earth Sciences.
- Matsya-6000: three persons, 6,000 m.
- Builder: NIOT, Chennai, with ISRO help.
- Contract area for nodules: 75,000 sq km.
Do Not Confuse With
- Samudrayaan and Gaganyaan Deep sea crewed mission versus crewed space mission
- Deep Ocean Mission and Sagarmala Technology mission versus port-led development
- NIOT and INCOIS Ocean technology institute versus ocean information service
Memory Hook
Six thousand metres down, three persons round, Matsya brings the deep sea to ground.
Mains Angle
Questions ask about the value and risks of deep-sea exploration. These points give a balanced frame.
- Benefits Resources, science, strategic voice
- Risks Safety, environment, cost
- Way forward Safe trials, rules, environmental assessment
A Question You May Face
An original practice question, not a past paper question.
“Discuss the objectives of the Deep Ocean Mission and examine the environmental and strategic issues in deep-sea mining.”
How to Answer
- Context Blue Economy and seabed resources.
- Mission Six components.
- Benefits Metals and technology.
- Risks Habitat damage.
- Way Caution and rules.
GS Relevance
Frequently Asked Questions
What is the Deep Ocean Mission?
The Deep Ocean Mission is a Ministry of Earth Sciences mission approved on 16 June 2021 with an outlay of Rs 4,077 crore for five years. It develops technology for deep-sea mining and a crewed submersible, ocean climate services, biodiversity studies, ocean energy and an advanced marine station, as part of the Blue Economy.
What is Samudrayaan and Matsya-6000?
Samudrayaan is India's first crewed deep-sea mission. Its vehicle Matsya-6000, built by the National Institute of Ocean Technology with help from ISRO, is designed to carry three people to 6,000 metres in a titanium alloy sphere. The depth would let scientists study seabed resources such as polymetallic nodules.
Which ministry runs the Deep Ocean Mission?
The Ministry of Earth Sciences is the nodal ministry. The National Institute of Ocean Technology in Chennai, an autonomous institute under the ministry, builds the submersible and mining technology. ISRO's Vikram Sarabhai Space Centre helped with the titanium personnel sphere, but ISRO is not the nodal agency.
What are polymetallic nodules?
Polymetallic nodules are potato-sized lumps on the deep seabed that contain nickel, cobalt, copper and manganese. India holds an exploration contract of about 75,000 square kilometres in the Central Indian Ocean Basin from the International Seabed Authority, and the mission is developing technology to test their collection.
What is the latest status of Samudrayaan and Matsya-6000?
NIOT said in 2025 that the crewed mission would be launched by the end of 2026, and reports from 2026 describe harbour trials and a planned dive to about 500 metres first. A crewed 6,000 metre dive had not been reported in the sources checked, so the latest official update should be confirmed.
PYQ Practice — Statement Analysis
1 The Deep Ocean Mission is nodally run by the Ministry of Earth Sciences.
The ministry approved and runs it.
2 Matsya-6000 is designed to carry three persons.
The depth target is 6,000 metres.
3 ISRO is the nodal agency of the Deep Ocean Mission.
The Ministry of Earth Sciences is nodal, and NIOT builds the vehicle.
4 Polymetallic nodules contain nickel and cobalt.
They also contain copper and manganese.
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