New Delhi/Chennai: Hectic consultations are on at the highest levels in the government and UPA on a reshuffle of the Union Council of Ministers that can take place as early as on Monday and indications are that DMK may not send its replacements for two vacancies.

Congress President Sonia Gandhi today met Prime Minister Manmohan Singh for the third time in more than a fortnight and is understood to have given finishing touches to the restructuring exercise.

Reshuffle plans acquired an urgency in the wake of resignation by DMK representative Dayanidhi Maran and Corporate Affairs Minister Murli Deora's offer to quit.

There was no official word on what transpired between Singh and Gandhi but speculation was rife that the reshuffle could take place as early as Monday evening.

Meanwhile, Finance Minister and senior Congress leader Pranab Mukherjee met M Karunanidhi in Chennai and is understood to have raised the issue of DMK sending its replacements to Maran and A Raja, who had quit earlier.

Mukherjee is understood to have offered two Cabinet berths to DMK to fill the vacancies but Karunanidhi has reportedly expressed reluctance to accept it, at least for the time being.

Karunandhi has conveyed to the Congress leadership that a decision on it can be taken only at the party's General Council meeting on July 23-24 in Coimbatore where the DMK is expected to review the political situation in the aftermath of the electoral debacle, including its relations with Congress.

After the meeting, Mukherjee merely said the alliance with DMK would be strengthened and parried a question whether DMK's replacements in the Cabinet was discussed.