The United Progressive Alliance on Thursday said it will not be a cakewalk for India to get a permanent seat in an expanded United Nations Security Council.

This prompted ally Communist Party of India- Marxist and the Bharatiya Janata Party to enquire whether it was due to lack of support from developing nations as a result of New Delhi's tilt towards US.

Responding to supplementary questions during Question Hour in Rajya Sabha, External Affairs Minister Natwar Singh asserted that India shared good relations with all countries and had sent special envoys to mobilise support in this regard.

He said G-4, the group comprising Germany [Images], Japan [Images], Brazil [Images] and India, should be credited with putting forward the UNSC reforms, including expansion of the security council, on agenda of the UN and it could not be reversed.

He said India had agreed to a membership in UNSC without veto power for 15 years as a beginning had to be made in this direction.

Earlier, Minister of State for External Affairs, Rao Inderjit Singh, in response to a query on the issue, said, "Despite our best effort, it is possible that nothing will happen."