After a week full of revealing the rest of the characters, the makers of Idli Kadai, has revealed that Dhanush will portray Murugan in the series. Idli Kadai, which is directed by Dhanush, is set to release on October 1.

The announcement also comes on the eve of the release of the film's audio and trailer, which is set to be released through an event conducted at the Jawaharlal Nehru Stadium, Chennai, on September 14. Idli Kadai is Dhanush's fourth directorial after Pa Paandi, Raayan, and Nilavuku En Mel Ennadi Kobam.

The cast for the film includes Shalini Pandey, Nithya Menen, Samuthirakani, Raj Kiran, Sathyaraj, Parthiban, and Arun Vijay, amongst others.

GV Prakash Kumar is composing music for the film, continuing his collaboration with Dhanush after Nilavuku En Mel Ennadi Kobam. The rest of the technical crew of the film includes Kiran Koushik as the director of photography, Prasanna GK as the editor, Jacki as the art director, and Peter Hein as the stunt choreographer.

Dhanush produces the film under his Wunderbar Films banner, along with Aakash Baskaran, who is producing under his Dawn Pictures banner. Inban Udhayanidhi, son of Tamil Nadu's Deputy Chief Minister Udhayanidhi Stalin, will get his first film credit as a presenter for Idli Kadai.