New Delhi, Apr 2 (ANI): Prime Minister Manmohan Singh said on Wednesday that the country aims to expand nuclear energy generation capacity to more than 62000 mega watt by 2032 with additional safety features and proliferation resistant technologies. Singh was addressing the audience on nuclear weapon free world at Institute for Defence Studies and Analyses (IDSA) in New Delhi. The Prime Minister also said that there is no theme more important or for that matter politically more challenging to determine country's international security. He further added that the very first resolution of the first session of the United Nations General Assembly dealt with the issue of nuclear technology and the need to harness it for peaceful applications. Stressing on the need of reducing the importance of nuclear weapons, Prime Minister said it would require a combined effort by many nations.