The ruling party also invited applications from aspiring candidates for the by-polls to 18 assembly segments, which will be held along with the parliament elections.
The board interviewed the aspiring candidates for constituencies, including Salem, Theni, Nilgiris, Tuticoring and Coimbatore, a party release said.
Ravindranath reportedly sought ticket for Theni Lok Sabha segment.
On Monday, he said he had been involved in party work for the last 21 years.
"I am doing party work since I was 18. Now I am 39 years old. I have visited every town and village (in Theni)... I am keen in doing public service and the (AIADMK) Coordinator (Panneerselvam) has said efficiency and loyalty to the party are key (for a post)," he later told reporters.
Kumar exuded confidence that the AIADMK-led alliance will win all 40 seats.
The AIADMK is heading the NDA in Tamil Nadu, whose constituents are the BJP, PMK, DMDK, Puthiya Tamizhagam and Puthiya Neethi Katchi.
The party has allotted seven seats to PMK, five to the BJP, four to the Vijayakanth-led DMDK, and one each to Puthiya Tamizhagam and Puthiya Neethi Katchi, thus leaving 21 for itself as of now.
There are expectations that former Minister GK Vasan- led Tamil Maanila Congress may join the AIADMK front, giving the final shape to the combine that will take on the DMK-led alliance.
The lone Puducherry seat has been allotted to AINRC, headed by former chief minister N Rangasamy.
The AIADMK invited applications from aspirants for 18 assembly seats in the state where bypolls are scheduled.
The by-polls are considered crucial as it would have a bearing on the stability of the Palaniswami-led AIADMK government which needs to win a sizeable number of them to retain its majority in the 234-member House.
Of the 18 seats, sixteen had fallen vacant following the disqualification of ruling AIADMK MLAs loyal to rival party leader TTV Dhinakaran.
The by-poll to Tiruvarur seat has been necessitated by the death of sitting member and late DMK patriarch M Karunanidhi while the Hosur seat fell vacant following the disqualification of Minister K Balakrishna Reddy after his conviction by a court in a decades-old criminal case.
Bypolls were not scheduled for Tiruparankundram, Ottapidaram and Aravakurichi constituencies, which are also vacant, in view of election petitions pending in the Madras High Court.
(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)