'Ividam Swargamanu' concerns the story of a hard-working farmer known as Mathews and his fight against a land mafia which tries to take over his farmland

The story, set in the backdrop of Nallore, a small town in Thoothukudi District, revolves around Sub-Inspector Durai Singam, a brave and just policeman who serves in his hometown primarily to fulfill his father’s wish. Durai Singam settles every dispute in his town patiently with his words of wisdom and resorts to force only when the situation demands it. Kavya, a city girl who comes on vacation to Nallore, falls in love with Durai Singam. Erimalai, Durai Singam's bumbling colleague and friend, often accompanies him.

Murugan is a stunt actor in movies and his only aim in life is to become a good villain and get featured prominently in movie posters and cutouts. At a temple festival, he rescues Dakshinamoorthy from goons trying to kidnap him on orders from his son, who wants to take over land on which an orphanage is located. Murugan takes Dakshina to his mansion to keep him safe. Soon, thugs arrive in search of Dakshina as the land was promised to politician Ranganayaki alias Akka in return for an MLA seat to his son. It is now up to Murugan to foil their plan.