An upset M Karunanidhi could decide on Friday on the withdrawal of the DMK ministers at the Centre at a meeting of the party's top brass in Chennai.
This is the impression gaining ground in Congress circles here ahead of the emergency meeting of the DMK's high-level Action Committee.
The meeting, the first after DMK's drubbing in the assembly polls in which it finished a poor third, is being held in the wake of the Delhi high court denying bail to DMK MP and Karunanidhi's daughter, Kanimozhi, in the 2G spectrum case.
She is currently in Tihar jail.
The DMK's direction to all members of the Committee to "participate in the meeting without fail" has fuelled talk in Congress that an important decision is likely to be taken by the Dravidian party on Friday.
Of late, the 87-year old DMK patriarch has been critical of the Congress, telling the cadres that bad friendship ends in trouble. He had on Sunday blamed the Centre for the arrest of Kanimozhi, saying it was either due to its "orders or complacency."
The party has been going through a rough patch of late, with Kanimozhi and Karunanidhi's trusted junior colleague and former telecom minister A Raja lodged in jail for their alleged roles in the 2G spectrum scam allocation.
Karunanidhi's grandnephew and Union minister Dayanidhi Maran is also under the scanner in the 2G case and his resignation is being demanded by the opposition.
If the DMK decides to withdraw from the government, it could avoid the ignominy of Maran having to quit like Raja. Besides Maran, other DMK ministers at the Centre are MK Alagiri, SS Palanimanickam, Gandhiselvan, D Napolean and S Jagatrakshakan.