Chidambarathil Oru Appasamy

Elangovan is a school teacher in Chidambaram who is a jack of all trades but master of none. He spends time with friends boozing, gambling, and trying out new businesses that always fail. His wife is Thenmozhi, and they have two daughters. Elangovan's father and father-in-law try to make him responsible towards his family, but he refuses to take up anything serious in life. On everyone's advice, Elangovan goes to Sabarimala after taking Vrath but returns to continue as Sanyasi without being the least bothered about his duties towards his family. Fearing his wife and relatives, he decides to join a mutt, but there also he is unable to sustain. In the meantime, Thenmozhi works hard to educate her children. She is mentally prepared to live without her husband when he returns and pleads with her as usual. This time, she is not willing to pardon him and ignores him. What happens then forms the climax and message of the film.

• Thangar Bachan as Elangovan
• Navya Nair as Thenmozhi
• Pyramid Natarajan as Elangovan's father
• R. Sundarrajan as Elangovan's father-in-law
• Ganja Karuppu
• Jagan
• Venba as Kani - Elangovan's daughter
• Prabhu Solomon as Elangovan's friend

The film received mixed reviews from critics, most of the critics appreciated Navya Nair's performance. Sify wrote: "The goodness of COA lies in the simple story, an outstanding performance by Navya Nair and soulful music of Ilaiyaraaja. The film with its cute message seeped in real life situations will keep you engrossed".[2] Indiaglitz wrote:"On the whole Chidambarathil Oru Appasamy is a movie for women folk with a strong message".[3] Behindwoods wrote: "Altogether, the movie is made to target the minds of women without much of commercialism".[4]

The film soundtrack was composed by Ilaiyaraaja. The lyrics for the songs were written by Vaali, Muthulingam, Gangai Amaran, Mu. Metha and Palani Bharathi.[5] Indiaglitz praised the songs saying that "Ilaiyaraaja did a splendid work [..] Maestro has not lost his touch."[6]

The audio launch of Chidambarathil Oru Appasamy was held in Chennai on 12 August 2005. The audio was released by director Bharathiraja and was received by Balu Mahendra.[7] during the audio launch, Thangar lashed against actors for not accepting the lead role in the film.<ref"Thangar's hard talk continues". Indiaglitz. 13 August 2005. Retrieved 4 August 2021.</ref>

The film's satellite television rights were sold to Jaya TV and was telecast by the 7th week while the film was still playing in screens.[8]