The unit four of indigenously-developed 220 MW capacity Atomic Power plant at Kaiga in Karnataka attained criticality yesterday thereby making India the sixth country in the world to have 20 or more nuclear power plants in operation. The announcement of Kaiga-4 attaining criticality was made by Atomic Energy Commission Chairman Srikumar Banerjee in the presence of Nuclear Power Corporation of India Limited, NPCIL Chairman-cum-Managing Director Shreyans Kumar Jain and a number of senior officials at the plant site. After the unit became operational, the power generation at Kaiga Nuclear power station has gone up from the current 4560 Mega Watt to 4780 Mega Watt. Kaiga Nuclear power station is the third largest site of NPCIL after Tarapur and Rawatbhata. Dr. Srikumar Banerjee 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 the Nuclear Liability Bill, Dr.Banerjee disclosed that under the provisions of the Bill, the liabilities are 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 are 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, Dr. Banerjee said that the site for the same is available in the same premises in Kaiga and once the proposal is cleared by the Government, it can be built at a lesser cost without any damage to the environment.