Jayalalithaa has been holding the post of General Secretary since 1987 after being elected following the death of party founder MG Ramachandran.
The elections to the general secretary post, held once in five years, are being held in accordance with party rules, an AIADMK release here said.
The process of filing nominations for the elections will be from August 20 to 24. Scrutiny will take place on August 27 and last date of withdrawal of candidature will be Augsut 28.
Results will be announced on August 29.