India and the US on Thursday held high-level talks on a proposed agreement to operationalise the civilian nuclear deal with Washington saying that the two sides were almost there and little more work was needed to conclude the pact.

Foreign Secretary Shivshankar Menon met US Under Secretary of State Nicholas Burns to iron out remaining differences on the '123 Agreement,' which has already witnessed '90 per cent progress.'

Before going in for talks, Burns told media persons that the two countries had come a long way in the talks on the agreement since the negotiations began two years ago.

Burns said the two sides are almost there and little more work was needed to conclude the pact.

He expressed confidence that the agreement would be clinched.