The AIADMK on Monday announced that the party’s governing council has been authorised to selection of candidate for the RK Nagar Assembly constituency by-poll.
In a statement, the AIADMK said the decision was taken unanimously in a meeting attended by party office bearers, legislators and MPs.
The meeting also deliberated on the manner in which the first death anniversary of late Chief Minister and party General Secretary J Jayalalithaa would be observed.
The Dr Radhakrishnan Nagar seat fell vacant following the death of Chief Minister J Jayalalithaa on December 5, 2016.
Although the by-poll was scheduled for April 12, it was countermanded following reports of attempted voter bribing by a candidate.
The Madras High Court had directed to hold the by-poll before December 31.
Meanwhile, the DMK has said it will be renominating its candidate Marudhu Ganesh and immediately got support from the Congress, Viduthalai Chiruttai Katchi (VCK) and All India Forward Bloc.