Bhabha Atomic Research Centre

The Bhabha Atomic Research Centre (BARC) is India's primary nuclear research facility based in Mumbai. It has a number of nuclear reactors, all of which are used for India's nuclear power and research programme.

BARC was started in 1954, as the Atomic Energy Establishment, the Trombay (AEET), and became India's primary nuclear research centre, taking over charge of most nuclear scientists that were at the Tata Institute of Fundamental Research. After Homi J. Bhabha's death in 1966, the centre was renamed as the Bhabha Atomic Research Centre.

The first reactors at BARC and its affiliated power generation centres were imported from the west. India's first power reactors, installed at the Tarapur Atomic Power Plant (TAPP) were from the United States.

The primary importance of BARC is as a research centre. The BARC and the Indian government has consistently maintained that the reactors are used for this purpose only: Apsara (1956; named by the then Prime Minister of India, Jawaharlal Nehru when he likened the blue Cerenkov radiation to the beauty of the Apsaras (Indra's court dancers), CIRUS (1960; the "Canada-India Reactor" with assistance from Canada), the now-defunct ZERLINA (1961; Zero Energy Reactor for Lattice Investigations and Neutron Assay), Purnima I (1972), Purnima II (1984), Dhruva(1985), Purnima III (1990), and Kamini.

The plutonium used in India's 1974 nuclear test carried out in Pokhran in the Thar desert of Rajasthan (Peaceful Nuclear Explosion) came from CIRUS. The 1974 test (and the 1998 tests that followed) gave Indian scientists the technological know-how and confidence not only to develop nuclear fuel for future reactors to be used in power generation and research, but also the capacity to refine the same fuel into weapons-grade fuel to be used in the development of nuclear weapons.

BARC is also responsible for India's first PWR at Kalpakkam, a 80Mw land based prototype of INS Arihant's nuclear power unit, as well as the Arihant's power pack itself.