Atomic Energy Commission

The Atomic Energy Commission (AEC) is the highest executive and policy-making authority for India's nuclear programme, constituted on 10 August 1948 under a resolution of the Department of Scientific Research, with Dr. Homi Jehangir Bhabha as its first chairman. It was reconstituted on 1 March 1958 by a Government of India resolution following the creation of the Department of Atomic Energy (DAE) in 1954, which placed the entire atomic energy enterprise directly under the charge of the Prime Minister. Its statutory foundation rests on the Atomic Energy Act, 1948, later replaced by the comprehensive Atomic Energy Act, 1962, which vests in the Central Government exclusive control over the production, development, use and disposal of atomic energy and prescribed substances such as uranium, thorium and plutonium. The AEC functions under the administrative umbrella of the DAE, and the Secretary of the DAE serves ex officio as the Chairman of the Commission.

The Commission is a small, expert body whose members are appointed by the Prime Minister, comprising the Chairman (who is also DAE Secretary), senior scientists, and finance and policy representatives. It frames the overarching nuclear policy, sanctions large programmes and budgets, and coordinates the work of the constituent institutions — the Bhabha Atomic Research Centre (BARC) at Trombay, the Indira Gandhi Centre for Atomic Research (IGCAR) at Kalpakkam, the Nuclear Power Corporation of India Limited (NPCIL), the Uranium Corporation of India Limited (UCIL), and the regulatory Atomic Energy Regulatory Board (AERB) established in 1983. The AEC operationalises Bhabha's celebrated three-stage nuclear power programme: Stage I uses Pressurised Heavy Water Reactors (PHWRs) fuelled by natural uranium; Stage II deploys Fast Breeder Reactors using plutonium and depleted uranium to breed more fissile material; and Stage III aims to exploit India's vast thorium reserves through thorium-Uranium-233 cycles, a design tailored to the country's resource endowment.

In practice the AEC has guided every milestone of India's nuclear journey: the Apsara research reactor (1956, Asia's first), the Pokhran-I "Smiling Buddha" test of 18 May 1974, the Pokhran-II tests of May 1998, and the negotiation of the civil-nuclear framework following the India–US Civil Nuclear Agreement (123 Agreement) of 2008 and the Nuclear Suppliers Group waiver of the same year. As of 2026 the prototype Fast Breeder Reactor (PFBR) at Kalpakkam represents the transition into Stage II, while indigenous PHWRs continue to anchor the grid. The Chairman as of recent years has been Dr. Ajit Kumar Mohanty, who succeeded Dr. K.N. Vyas.

For the examination, the AEC is core to the UPSC Post-Independence History syllabus (institution-building under Nehru and the Bhabha–Nehru partnership) and the Science & Technology component of GS Paper III (Prelims and Mains). Typical question angles include: distinguishing the AEC from the AERB and DAE; identifying the chronology and statutory basis (1948 versus 1962 Acts); explaining the three-stage programme and why thorium is central to it; and connecting nuclear policy to strategic affairs, the NSG waiver and India's non-NPT status. Candidates should memorise the founding dates, Bhabha's role and the institutional hierarchy under the Prime Minister.