Finance Minister Pranab Mukherjee is likely to meet Congress President Sonia Gandhi today in the backdrop of controversy over a note by his ministry on 2G scam that has kicked up a political storm here with the opposition demanding Home Minister P Chidambaram's resignation. 

Sources said Mukherjee has sought an appointment with Gandhi and could be meeting her any time after 6 pm. Mukherjee, who was in Washington for IMF and World Bank meetings, had to advance his departure from there for New York for the unscheduled meeting with Prime Minister Manmohan Singh.

The controversial note, prepared by a Finance Ministry official, had suggested that the 2G scam could have been averted had the Finance Ministry then headed by Chidambaram insisted on the auction route instead of the 2001 price for allotment of spectrum.