"The time has come for the Indian government to repudiate the 123 Agreement, which is not in India's national interest," it said, adding that the argument that India has a different interpretation for it was "meaningless".

"The US as a supplier of nuclear equipment and material will undertake such supply only under the terms of what it calls a 'framework agreement'," the party said.

While India would place its civilian nuclear facilities under the IAEA Safeguards permanently, President Bush has "made it clear that the fuel supply assurance in the 123 Agreement is not legally binding".

The documents also showed that India would never be able to withdraw is civilian nuclear facilities from IAEA Safeguards unilaterally, even its indigenously built reactors, in the event of a disruption in fuel supply or if the 123 Agreement itself was terminated, the CPI(M) said.

Quoting the Prime Minister's statement in Parliament and the US Presidential Determination, it said "clearly, India will not have access to the full fuel cycle and all sensitive technologies are also denied...thus India is being asked to place its civilian reactors under IAEA Safeguards in perpetuity without all restrictions being lifted."