India will take its civilian nuclear deal with the United States to the world looking to secure fuel supplies and reactor technology, analysts said, while seeking to soothe critics with a strong non-proliferation pitch.

But it is unlikely India will launch formal nuclear trade negotiations ahead of the new deal's ratification by the US Congress, given the strong backing from Washington that helped seal the deal.

The 45 nations of the Nuclear Suppliers Group (NSG) on Saturday backed a US proposal and adopted a one-off waiver of a 34-year-old global ban on nuclear trade with India, allowing New Delhi and Washington to do business.