Service of State
Department of Atomic Energy
The Department of Atomic Energy is the Government of India agency that runs the country's civil and strategic nuclear enterprise end to end, from uranium mining and heavy-water production to reactor construction, reprocessing and waste management. Established in 1954 under the direct charge of the Prime Minister, it is a seat of power because it has historically held a near-monopoly over nuclear technology, controls the public-sector reactor fleet through NPCIL and BHAVINI, and directs the three-stage programme meant to unlock India's thorium reserves. Its policy is set by the Atomic Energy Commission, which holds full executive and financial powers.
Updated
- Established
- 3 August 1954, under the Prime Minister
- Policy body
- Atomic Energy Commission (1958), with full executive and financial powers
- Headquarters
- Mumbai, Maharashtra
- Operating reactors
- 24 units, ~8,180 MWe (NPCIL, early 2026)
- Stated target
- 100 GW of nuclear capacity by 2047
- Principal utilities
- NPCIL, BHAVINI; lead lab BARC
Role
The Department of Atomic Energy (DAE) is the Government of India department that owns India’s nuclear enterprise from mine to grid. Established on 3 August 1954 under the direct charge of the Prime Minister, it controls uranium exploration and processing, nuclear-fuel fabrication, heavy-water production, reactor construction and operation, spent-fuel reprocessing and waste management, and it also runs a large basic-science and isotope-applications programme. Its policy is set by the Atomic Energy Commission, reconstituted within the department in 1958 with full executive and financial powers; the Secretary of DAE also chairs that commission, so the same office holds both the executive and the policy levers. Operationally the department works through a family of bodies: research centres led by the Bhabha Atomic Research Centre (BARC) and the Indira Gandhi Centre for Atomic Research; public-sector utilities NPCIL and BHAVINI that build and run the reactors; and fuel-cycle organisations such as the Nuclear Fuel Complex, Heavy Water Board and Uranium Corporation of India. Because it has historically held a near-monopoly over fissile material and reactor technology, the DAE is one of the most concentrated seats of technical power in the Indian state.
The department is the custodian of the three-stage nuclear power programme, the doctrine designed to move India from natural-uranium reactors through plutonium-fuelled fast breeders to a thorium-based cycle designed to draw on the country’s very large thorium reserves. That long-horizon strategy, its civil-nuclear diplomacy after the 2008 Nuclear Suppliers Group waiver, and its role as the technical base behind India’s strategic programme make the DAE central to both energy policy and strategic autonomy. Its policy neighbours include the Ministry of Power, which the reactor fleet feeds, and the Ministry of Finance, which set the 2025 Nuclear Energy Mission funding. See /service/dept-atomic-energy for the maintained dossier and the linked topic brief on India’s nuclear-energy expansion.
Desk maintained by IndiaStand editorial cycles. Officeholders are transient; this dossier tracks the institution.
Timeline since 1947
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Atomic Energy Act and first commission
The Atomic Energy Act, 1948 was enacted and a first Atomic Energy Commission set up under the Department of Scientific Research, laying the legal basis for state control of nuclear matter.
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Department of Atomic Energy created
A Presidential Order established the DAE under the direct charge of the Prime Minister, concentrating all Government business relating to atomic energy in a single department.
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Atomic Energy Commission reconstituted within DAE
A Government Resolution placed the Atomic Energy Commission inside the department and vested it with full executive and financial powers to set nuclear policy.
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Tarapur, India's first nuclear power station, commissioned
The two Tarapur boiling-water reactors near Mumbai began operation, marking the start of India's civil nuclear power generation.
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Pokhran-I nuclear test
India conducted its first nuclear explosive test, described officially as a peaceful nuclear explosion, which led to decades of external restrictions on nuclear trade.
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Civil nuclear agreement and NSG waiver
A Nuclear Suppliers Group waiver and the India-United States civil nuclear agreement reopened international nuclear cooperation for India's separated civilian facilities.
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SHANTI Act 2025 passed by Parliament
Parliament passed the Sustainable Harnessing and Advancement of Nuclear Energy for Transforming India Bill, repealing the Atomic Energy Act, 1962 and the Civil Liability for Nuclear Damage Act, 2010 and opening nuclear licensing to Indian private companies; it received presidential assent on 20 December 2025.
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Prototype Fast Breeder Reactor attains criticality
The 500 MWe PFBR at Kalpakkam, operated by BHAVINI, achieved first criticality after fuel loading began in October 2025, a milestone for Stage 2 of the three-stage programme.
Frequently asked
- What is Department of Atomic Energy?
- The Department of Atomic Energy is the Government of India agency that runs the country's civil and strategic nuclear enterprise end to end, from uranium mining and heavy-water production to reactor construction, reprocessing and waste management. Established in 1954 under the direct charge of the Prime Minister, it is a seat of power because it has historically held a near-monopoly over nuclear technology, controls the public-sector reactor fleet through NPCIL and BHAVINI, and directs the three-stage programme meant to unlock India's thorium reserves. Its policy is set by the Atomic Energy Commission, which holds full executive and financial powers.
- When was Department of Atomic Energy established?
- Department of Atomic Energy was established 1954-08-03.
- What does Department of Atomic Energy do?
- Its remit covers Nuclear power: construction and operation of reactors through public-sector undertakings, Nuclear fuel cycle: uranium exploration and mining, fuel fabrication, heavy-water production, reprocessing and waste management, The three-stage nuclear power programme aimed at thorium utilisation, Nuclear and radiological safety oversight through the Atomic Energy Regulatory Board, Basic research in physics, accelerators, lasers and fusion through national institutes, Non-power applications: isotopes and radiation for healthcare, agriculture and industry.
- What is the latest on Department of Atomic Energy?
- As of 2026-07-06: Prototype Fast Breeder Reactor attains criticality. The 500 MWe PFBR at Kalpakkam, operated by BHAVINI, achieved first criticality after fuel loading began in October 2025, a milestone for Stage 2 of the three-stage programme.