With just two days left to seal a deal that is acceptable to all, world leaders acknowledged that a deal at Copenhagen would be 'very difficult' and there was 'no guarantee of accord'.

Environment Minister Jairam Ramesh, who is leading the Indian delegation, said the BASIC group - comprising India, China, South Africa and Brazil — 'is united and we would like to reiterate that we want an equitable and fair agreement to emerge out of Copenhagen.'

'But if for some reasons there are disappointments, BASIC will not be to blame,' he told reporters at Copenhagen.

Ramesh said, 'We will resist in united manner any manipulation to weaken in any way the troika of the UNFCC, the Kyoto Protocol and the Bali Action Plan,' Ramesh said.

Negotiators worked through the night in Copenhagen, but failed to resolve major disputes as world leaders began arriving in hopes of signing a deal by Friday.

Efforts to reach a climate change deal in Copenhagen have receded further with a new draft text of a potential treaty reflecting the deep divisions between developed and developing countries and a consensus on all major issues remaining elusive.

Delegates warned if a treaty was not negotiated, a draft treaty may be dropped at the last moment to ensure that the talks do not fail an option India is completely against.

India already has several concerns over the original draft treaty that was released by the Chair of the Working Group of Long Term Cooperative Action (LCA), which is one of the tracks of negotiations along with the Working Group on Kyoto Protocol.

India will not accept three provisions which are in the first draft that was tabled by the United Nations Working group, Ramesh has said but was willing to use the draft as a starting point for further negotiations.#