Saidai Sathya is a man who has little respect for the law. He parks his car in the middle of the road and creates trouble for other vehicles. A traffic policeman named Kandasamy ignores that violation because he is a close friend of Sathya. A social activist and lawyer, Udhayamoorthy, drags both of them to court for obstructing traffic and causing a nuisance. The court finds them guilty, but instead of sentencing them, the court sends them to the Madurai Gandhi Museum for help, where they meet a college student named Meenakshi. After Sathya is discharged, he starts a job as a henchman. VBR, a villainous former minister, sends Sathya to steal a confidential file containing vital evidence on the death of collector Leelavathi at Udayamoorthy's place. While Sathya is stealing the file, Udayamoorthy dies by being pierced by steel rods While dying, Udayamoorthy blesses Sathya by saying "Vazhga Valamudan". These last words haunt Sathya, and filled with remorse, he vows to carry on Udayamoorthy's good work. Sathya gathers evidence to expose VBR, whom he discovers is Leelavathi's murder. VBR's goons burn the documents to destroy the evidence. Sathya continues with his task of exposing VBR and adopts Gandhian principles of nonviolence and peaceful satyagraha. Ezhumalai is an Assistant Commissioner of Police vows to avenge the death of his brother Udhayamoorthy. He thinks that Sathya killed him, although he later finds out that he did not. Sathya sits near the Gandhi statue and follows his examples of nonviolence, confident that VBR will be arrested. VBR surrenders himself to the police and is arrested. The film ends with Sathya getting the justice.
Soundtrack was composed by Srikanth Deva and lyrics written by Pa. Vijay, Snehan and Udhayan.
Critical reception
Behindwoods wrote "Although Aayudham Seivom only has the ingredients of a commercial potboiler – fights, an item number, a little more than below-average script, and a comedy track – what makes it stand a little apart is the basic idea of its plot." Sify wrote "Like all Sundar C films, this one is also strictly aimed at the B & C audiences. It could have been far better if Udhayan had tried to explore the unknown instead of going through the same beaten track".
