Even as Left parties stuck to their firm opposition to Indo-US nuclear deal, the Congress on  Wednesday struck an aggressive posture, saying it was going ahead with the agreement with the timing of its choice.

"We are going ahead with the deal. That is very clear. And the timing is ours. We will choose our own time," senior Congress leader Veerappa Moily told NDTV.

His remarks came soon after the UPA-Left Committee meeting failed to end the deadlock between the two sides on the issue.

However, notwithstanding the standoff, he said, "We are confident that logic and rationale will be driven home to Left parties. We will put the country's national interest foremost than their party agenda."

Suggesting that all attempts were made to bring Left parties on-board on the issue, Moily said "they have lot of apprehensions and we should also give them the space".

"Not that we bulldoze our decision like that in a coalition arrangements like this. We are taking steps one by one. We are really gaining ground to the extent that we are driving home the issues to the Left parties from the beginning", he said.

Asked what was stopping the Congress from going ahead with the deal, he said the party had never said that the decision would be taken today itself.