Pachai Engira Kaathu is directed by a debutant director Keera who has assisted directors like Sujith, V Sekar, Mugavari Durai, and Thankar Bachchan. The film is produced by Aswathaman Indhumathi and Vaigaraiyalan Dhanalakshmi under the banner Aa Thirai Niruvanam.
The story is said to be about a true incident that happened to a old person who lived in Malai Parai. The film begins in one night and ends in the same night. Seven people will speak from their point of view about the hero Pachai. The hero is Vasagar and heroine is Saranya. Hari Babu is composing the music for the movie.