After Theri, director Atlee and Vijay joined hands once again for a film titled Mersal. This film was released for Deepavali. Thenandal Studios Limited produced this film. For the first time, Vijay donned triple roles. Nithya Menon, Kajal Aggarwal and Samantha had paired with Vijay.S J Suryah had donned the dreaded villain role. The screenplay of the film has been penned jointly by Atlee, Bahubali fame K V Vijayendra Prasad and Vijay TV Ramana Girivasan. A R Rahman has composed the music while G K Vishnu has handled the camera. Anthony L Reuben was in charge of editing.
There was an overwhelming response for this film. Since Vijay has a good market in Tollywood, Mersal was dubbed in Telugu with the title Adirindhi. The Telugu version trailer garnered immense likes. Earlier the release of the film was announced twice but since the film was not censored, the release was postponed. Now the censor board has certified the film with U/A certificate. It has been decided to release the film on 9th November.