The meeting is also expected to declare that the actions taken by TTV Dhinakaran against party office bearers are null and void. More than 100 top functionaries are attending the meeting.
Monday's meeting comes a day after Dhinakaran dismissed Chief Minister Edappadi K Palaniswami as the party's Salem suburban district secretary.
Earlier, he had sacked several party officials, including former minister S Gokula Indira, chief whip S Rajendran, Rajya Sabha member R Vaithialingam, among others.
Around 22 MLAs who are backing Dhinakaran did not attend the meeting. They have said that they have not received any invite.
Monday's meeting involves CM Palaniswamy, Deputy CM O Panneerselvam, AIADMK's chief convenor, members of the executive committee, the newly set-up coordination committee, Members of Parliament, and Members of the Legislative Assembly.
The meeting at the AIADMK headquarters will also discuss the issue of 19 legislators giving a letter to Governor C Vidyasagar Rao withdrawing their support to Palaniswami and seeking a new chief minister.