Mumbai, Oct. 30 :    Mumbai, Oct. 30:  Atomic Energy Commission chairman R. Chidambaram said today India is capable of producing nuclear warheads of 'high yields' following its 'success' in the Pokhran tests. The five 'carefully planned and completely successful' tests two years ago 'gave us the capability to design and fabricate nuclear weapons from low yields up to around 200 kilotons,' said the top scientist behind the nuclear blasts which provoked similar tests by Pakistan. 'That was in May 1998 and a great deal of scientific and technological development has taken place since then,' Chidambaram said. Prime Minister Atal Behari Vajpayee had declared India a nuclear weapons state after the tests. Chidambaram for the first time gave details of India's nuclear capability in a speech to nuclear scientists, engineers and other staff at the Bhabha Atomic Research Centre (Barc) in Mumbai. The scientists had gathered to pay tribute to Homi Bhabha, the man who pioneered the country's nuclear programme, on his 91st birthday. The commission chief, however, refused to answer questions on Pakistan's nuclear weapons capability. 'I am not here to compare,' he said. Another top nuclear scientist A.N. Prasad, a former Barc dierctor, said India's capacity to produce nuclear weapons with high yields demonstrated it had 'the technology' to increase its yields further. 'Once you have the technology, the yields really do not matter,' Prasad, one of the UN inspectors sent to unearth Iraq's hidden nuclear arsenals, said, while speaking informally at the end of the gathering. Prasad said the basic difference between India and Pakistan's nuclear programmes was: 'While ours is indigenous, theirs is borrowed.' Analysts said India has enough plutonium to produce 85 to 90 nuclear weapons, while Pakistan possesses enough uranium for 40 nuclear warheads. The nuclear tests by the two countries caught the world unaware and the West responded with economic sanctions. Barc director Anil Kakodkar said India has nearly completed the 'post-test' investigations. 'These have confirmed that all objectives of the tests have been fully met.' Chidambaram said India is no longer considered a developing nation internationally on the nuclear front, but 'developed'. 'India is a founder member of International Atomic Energy Agency, where we are now a technical assistance giver, not a taker.' A number of scientists from developing countries are now trained in India, he said. Referring to Russian President Vladimir Putin's visit to the Barc earlier this month, Chidambaram said it indicated the rapidly increasing momentum in India's nuclear power sector and its growing cooperation with Russia in the area. Putin was the first foreign head of government to visit the Barc.