The resignation of Kandolkar and two other leaders, who had contested on the TMC symbol, came as another setback for the Mamata Banerjee-led party which is struggling to retain its flock in Goa since the poll debacle.
There have been speculations since some time about a rift between the TMC and Prashant Kishor's I-PAC.
Reacting to TMC's jibe, West Bengal Congress president Adhir Chowdhury said "agents of BJP" should not advise the party how to fight against the saffron camp.
Chidambaram, who is the Congress' senior election observer for the assembly polls next year, asserted that the Trinamool Congress' entry into Goa "appears to be an imposition from the top that is based in West Bengal" and said he does not know the Mamata Banerjee-led party's motive in trying to start a unit in Goa by "encouraging defections" from other parties.