What country supplied India with the technology used for its first Atomic bomb?

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Cabda and the UK, according to thwese two articles: Today in military history: India tests its first nuclear bomb On May 18, 1974, India became the sixth nation to successfully explode an atomic bomb. India called the explosion, which was executed in the Rajasthan desert at 8:05 am, "a peaceful nuclear explosion experiment." India's Atomic Energy Commission also stated that India had no intention of developing nuclear weapons. The international community reacted with alarm to India's "experiment." Pakistani Prime Minister Zulfikar Ali Bhutto called it a "fateful development" and "nuclear blackmail" and said Pakistan was "determined not to be intimidated." Ivan Head, chief foreign policy adviser to the prime minister of Canada, which had supplied Pakistan with the reactor used to produce the plutonium that went into the bomb, said that "India's May 18 explosion of nuclear device violates '71 understanding between India and Canada on Canadian aid to India's nuclear energy program." India acquired the technology it needed to assemble an atomic bomb beginning in the 1950's, when it joined the Atoms for Peace program, which provided countries with nuclear technology to be used for peaceful purposes. It was through Atoms for Peace that India acquired the Canadian reactor. It also got "heavy water" - water containing a large amount of an isotope important in the production of nuclear weapons - from the U.S. http://www.examiner.com/article/today-military-history-india-tests-its-first-nuclear-bomb In 1954 the Indian nuclear program began to move in a direction that would eventually lead to establishment of nuclear weapons capability. On 3 January 1954 the IAEC decided to set up a new facility - the Atomic Energy Establishment, Trombay (AEET), later to become the "Indian Los Alamos". On 3 August 1954 the Department of Atomic Energy (DAE) was created with Dr. Bhabha as Secretary. This department answered directly to the Prime Minister and has continued to do so down to the present day. The program grew swiftly. The atomic energy budget increased 12-fold from 1954 to 1956. By 1958 the DAE consumed one third of India's research budget. By 1959 AEET employed over one thousand scientists and engineers. In 1955 construction began on India's first reactor, the 1 MW Apsara research reactor, with British assistance. And in September 1955, after more than a year of negotiation, Canada agreed to supply India with a powerful research reactor - the 40 MW Canada-India Reactor (CIR). Under the Eisenhower Administration's "Atoms for Peace" program the US agreed to supply 21 tons of heavy water for this reactor in Februrary 1956, and the reactor was dubbed the Canada-India Reactor, U.S. or CIRUS (now commonly written as Cirus). http://nuclearweaponarchive.org/India/IndiaOrigin.html Jul 07 12, 4:11 AM