India has not only mastered the complex technology of heavy water production making it self-reliant, but also exports high quality heavy water to countries like Republic of Korea and the United States, said A L N Rao, Chairman and Chief Executive, Heavy Water Board on Monday. Heavy Water (D2O) is a compound of an isotope of hydrogen called heavy hydrogen or Deuterium (D) and oxygen. Heavy water reactors use heavy water as a neutron moderator. On the occasion of its anniversary celebrations of the Heavy Water Board at Indian Institute of Science here, he gave a detailed exposition of the activities and development of the water board since its inception in November 1954. Multiple technologies