The announcement comes days after the Madras High Court directed EC to hold by-election by December 31. The RK Nagar seat had been vacant following the demise of former CM J Jayalalithaa - who died at the Apollo Hospital in Chennai earlier previous year.
The RK Nagar by-poll had earlier been scheduled to be held on April 12, but it was cancelled after Income Tax raids uncovered evidence of massive corruption and bribery. The All India Anna Dravida Munnetra (AIADMK) who had earlier won the seat seven out of 11 times in the last 40 years will this time face their opposition in two factions.
Soon after the Election Commission announced that the bypoll to R K Nagar Assembly constituency would be held on December 21, AIADMK rebel faction leader T T V Dinakaran said he is ready to contest if the party and cadres allow him.
After losing the symbol, TTV Dinakaran, nephew of jailed VK Sasikala, announced that he would contest the RK Nagar bypoll as his faction enjoy the support of the cadre.
Chennai's RK Nagar, or Dr. Radhakrishnan Nagar, was the late Jayalalithaa's constituency.
The party also asserted that it was not anxious about the "Two Leaves" going to the ruling AIADMK faction.
He declined to comment on the party's probable candidate to fight the by-election.
The commission on Thursday restored the AIADMK's two-leaves symbol and name to the ruling faction led by Chief Minister Edappadi K Palaniswami and his deputy O Panneerselvam, almost seven months after the symbol was frozen following a factional feud in the AIADMK. Bypoll to RK Nagar was cancelled due to allegations of large-scale cash distribution to voters. Tamil Nadu Congress unit has extended support to the DMK in the bypoll.
The Tamil Nadu BJP Chief Tamilisai Soundararajan said a decision to contest or not will be taken after consultations within the party. The DMK meanwhile had named Marudhi Ganesh as their candidate, and the BJP named composer Gangai Amaran to fight for them.
J Deepa, niece of Jayalalithaa too, jumped into the electoral fray last time forming MGR Amma Deepa Forum.