"Our energy needs will continue to rise in the foreseeable future," he said while inaugurating a conference 'Towards a World Free of Nuclear Weapons' here.
Without referring to the Indo-US nuclear deal which the government says will expand India's energy base, Singh said, "We do not have the luxury of limiting our options of energy sources."
He said government is wishing to "create an international environment in which nuclear technology is used not for destructive purposes but for helping us meet our national development goals and our energy security."
The government is pushing the nuclear deal with the US as it will open the country's doors for cooperation with international community in the field, ending 34-year-old isolation.
The government's efforts are, however, facing stiff resistance from Left allies who are opposed to operationalisation of the Indo-US nuclear deal.
Making it clear that India is in no arms race with anyone, Singh said the country, which has witnessed rapid economic growth in the last few years, and "is poised for even higher growth rates in the futre, needs a peaceful international environment".
