Charging that the DMDK is controlled not by actor-turned-politician A. Vijaykant but by his wife Premalatha, the party leaders sacked a day earlier on Wednesday challenged their expulsion.
Legislator V.C. Chandrakumar told the media that if Vijaykant was in control of the party, then he would have aligned with the DMK for the May assembly elections in Tamil Nadu.
On Tuesday, Vijaykant dismissed 10 party functionaries for opposing his decision to align with the People's Welfare Front (PWF) - a combination of two Communist parties, Dalit party VCK and Vaiko's MDMK.
Chandrakumar said his expulsion and those of others was not valid as they were not given any notice.
He also asked why the party never took action against its legislators who openly supported the ruling AIADMK party for the past four years.
He claimed that Premalatha was the one who initiated talks with the PWF for an alliance while Vijaykant had been saying within the party that he was in talks with the DMK.
Chandrakumar also said many of the outgoing legislators and other party members were not willing to contest the coming elections.