Tarapur Atomic Power Station (T.A.P.S.) was the first nuclear power plant in India, with construction beginning in 1962 and operations commencing in 1969. It initially featured two 160 MW boiling water reactors (BWRs), making it the first such installation in Asia with a total capacity of 320 MW. The plant was built by American firms Bechtel and General Electric under a 1963 tripartite agreement between India, the United States, and the IAEA. This marked a significant step in India's nuclear energy journey.

Currently operated by the Nuclear Power Corporation of India Limited (NPCIL), T.A.P.S. has since expanded its capacity. Two 540 MW pressurised heavy water reactors (PHWRs), constructed by L&T and Gammon India, have been added to the station. With these additions, Tarapur has become the largest PHWR-based nuclear power station in India. It continues to play a vital role in supporting the country’s energy needs.