countries had provided to India. Canada concluded that the test violated a 1971 understanding between the two states, and froze nuclear energy assistance for the two heavy water reactors then under construction. The United States concluded that the test did not violate any agreement and proceeded with a June 1974 shipment of enriched uranium for the Tarapur reactor. Subsequent nuclear explosions Despite many proposals, India did not carry out further nuclear tests until 1998. After the 1998 general elections, Operation Shakti (also known as Pokhran-II) was carried out at the Pokhran test site, using technology designed and built over the preceding two decades. See also India and weapons of mass destruction History of nuclear weapons List of countries with nuclear weapons Pokhran-II Notes References External links Explosions in 1974 1974 in India 1974 in military history Indian nuclear weapons testing Political history of India Underground nuclear weapons testing Indira Gandhi administration Code names Pokaran Nuclear history of India Nuclear proliferation Military history of India Politics of India A. P. J. Abdul Kalam May 1974 events in Asia History of the Indian Army