Manathodu Mazhaikalam is a 2006 Indian Tamil-language buddy drama film directed by Arputhan, that stars Shaam, Nithya Das, Jayasurya, and Sameksha. This marked Arputhan's final directorial venture before his death on 7 November 2023.

Plot

Siva (Shaam) and Sathya (Nithya Das) are college mates and good friends who always look out for each other. Their friendship continues even after their college days. Siva's and Sathya's parents mistake their friendship for an affair. The two refuse and make it clear that they are platonic friends with oneness in their thoughts. In the course of time, Siva marries Sruthi (Sameksha) and Sathya marries Karthik (Jayasurya). Sruthi soon becomes pregnant but dies of childbirth complications. Siva is left to raise his son on his own. Many years pass, and Siva's son begins to treat him badly, leaving him destitute. At the same time, Karthik informs Siva that Sathya is on her deathbed due to heart problems. In due course of time, Sathya dies. The film ends as Karthik and Siva, both widowers, walk together, vowing to remain good friends for the remainder of their lives.