New Delhi: In the wake of campaign against corruption, launched by Gandhian Anna Hazare, Congress chairperson Sonia Gandhi on Friday met Prime Minister Manmohan Singh and discussed the stalemate on the issue of an effective Lokpal Bill.

Ministers Pranab Mukherjee and Kapil Sibal, Political Secretary to Congress president Ahmed Patel and Principal Secretary to the Prime Minister T K A Nair were also present at the meeting, party sources said.

The meeting comes a day after Sonia Gandhi appealed to Hazare to end his fast, which entered the fourth day on Friday, assuring him that his views would receive the government's full attention.

Stepping up his anti-corruption campaign, Hazare on Thursday brushed aside Gandhi's appeal to withdraw his hunger strike as the government initiated talks on formation of a joint committee to draft an effective Lokpal Bill but there was no agreement on two crucial aspects.

A meeting between Sibal with activists Swami Agnivesh and Arvind Kejriwal scheduled for Friday morning did not take place as both sides said they were waiting for each other.