NEW DELHI: The Left parties, which have given an ultimatum to the government on the Indo-US nuclear deal, plan to meet among themselves here on Monday to take stock of the situation.

Sources said the meeting on Monday evening will study the expected government response on the Left position against operationalising the civilian nuclear deal with the US as conveyed by CPI(M) General Secretary Prakash Karat to Prime Minister Manmohan Singh on Saturday.

Karat had conveyed the united Left stand on the issue, saying government would have to face serious consequences if it went ahead with implementing the deal.