US President George W Bush today made a telephone call to Prime Minister Dr. Manmohan Singh and discussed about the ongoing bilateral negotiations on finalisation of the 123 agreement the successful of which would ratify the civilian nuclear energy cooperation between the two countries.

Both the leaders "expressed happiness at the strengthening of the bilateral relations and reviewed developments pertaining to negotiations on bilateral civil nuclear cooperation," a government release said.

Both the leaders also stressed on the successful conclusion of the Doha Development Round of multilateral trade negotiations.

Dr. Singh told Bush that India has 'a strong vested interest' in the successful functioning of a multilateral trading system, and would like the Doha Round to adhere to the original understanding.

He also conveyed to Bush India's commitment to work with other countries to deal with the problems of climate change and global warming, as the two leaders discussed the Clean Development Mechanism (CDM) and agreed that the emphasis has to be on greater energy efficiency and the development of new technologies. Dr. Singh told Bush that environmental problems could not be solved by perpetuating poverty in developing countries. They also discussed matters pertaining to the agenda of the G-8 Outreach Summit due next month.

President Bush invited Dr. Singh to visit US again, which was accepted by the latter.