In a tragic accident, Kathiravan loses his wife and his left leg. A few years later he decides to get a prosthetic leg with the compensation amount. Kathiravan’s life gets more complicated when his daughter Magizh gets hospitalized.
Later, Arivu joins a leading FMCG company Saffron and joins its sales department under Stella Bruce (Thambi Ramaiah). He also manages to bring his friend Bhagya (Vijay Vasanth) out of Kasi’s gang and gets him a job in Saffron. He meets Aadhi (Fahadh Faasil), Saffron’s brand manager, who teaches him how to progress. On the night of April 1, Kasi and his gang stab Bhagya. Arivu tries to attack Kasi, but Kasi’s rival Doss (Sharath Lohitashwa) stabs Kasi, and Arivu admonishes Kasi for being a paid henchman. Kasi reveals to Arivu that he killed Bhagya on a contract given by Jayaram (Anish Kuruvilla), the President of Saffron, due to the fact that Bhagya tries to help Kasthuri (Sneha), who files a case claiming Saffron’s products to be adulterated, due to which she had lost her son. Arivu is addressed by Kasi as being a worse hitman than he himself is. Arivu then saves Kasi. Kasi tells Arivu that all the products manufactured by this company are adulterated. Arivu takes up a mission to fight such malpractices not only in Saffron, but also in all the other five major food companies, including the company owned by Madhav Kurup (Mahesh Manjrekar). Arivu shares all of his plans with Aadhi. It is revealed that Aadhi is Adhiban Madhav, Madhav’s son. He joined Saffron to know their trade secrets and merge the company with his father’s company.
A do-gooder man, who fights for the rights of the poor but is known as a rowdy, proposes marriage to a girl and she rejects him. Determined to woo her, he tries to win over her family but another admirer of hers tries to sabotage his image.
The film revolves around the family of Jaikodi Thevar, who has two wives. Jaikodi is a respected landowner whose family has helped develop the village for generations. However, his first wife Sevanamma (Viji Chandrasekhar), and her elder brother Veera (Vela Ramamoorthy) control the local gangs and are feared by the villagers. As a result, Jaikodi prefers to live with his second wife and her children (Parthiban (Kathir) and Prema. Because of her husband’s preference of his second wife, Sevanamma dislikes her and her children. Veera blames his brother-in-law’s second wife and her children of destroying his sister’s life and hates them too. The only member of the first wife’s family that accepts the second wife’s family is Jaikodi’s drunkard eldest son, Boologarasa (Kalaiyarasan). However, he is often powerless against his mother and maternal uncle.