The fourth unit of Kaiga Generating Station in Karnataka achieved its first criticality today. The generation of power by this unit has now catapulted India to the sixth rank in an elite club of nations, which have 20 or more nuclear power reactors.After the unit became operational today, the power generation at Kaiga Nuclear power station has gone up from the current 4560 Mega Watt to 4780 Mega Watt.Srikumar Banerjee, Chairman of Atomic Energy Commission, informed on this occasion that Nuclear Power Corporation has become globally a competent agency to build nuclear reactors and is ready to offer its expertise to other countries.Speaking about Nuclear Liability Bill, Banerjee disclosed that under the provisions of the Bill the liabilities were to be fixed on raw material suppliers, the operators and the transmitters. Hence the rules and definitions of each of these three parties are being framed. He further said that medical isotopes were much in demand worldwide. To fulfill the growing demand, the two reactors in Mumbai namely Dhruv and Apsara are developed to enhance the production of medical isotopes.Similarly, it is proposed to build a dedicated reactor in Vizag to produce medical isotopes. Reacting on a proposal pending with the Central Government to begin two 700 Mega watt units in Kaiga,Banerjee said that the site for the same was available in the same premises in Kaiga and once the proposal was cleared by the Government, it can be built at a lesser cost without any damage to the environment.