During the 40-minute meeting, the CPI(M) leader, whose party is strongly opposed to the agreement with the United States, apprised Yadav about the Left viewpoint on the issue and his discussions with Congress and several UPA allies, sources said.
Karat, earlier this morning met External Affairs Minister Pranab Mukherjee, government's chief negotiator on the deal, ahead of the crucial UPA-Left Committee meet.
Yadav, whose party was opposed to the deal, has already made it clear that it will take Left parties into confidence before considering any re-think on the issue.
