The film began with the abandonment of a baby girl in a baby hatch and that baby was brought up in a government orphanage. Now, Raani is a gifted woman and she is the proud of the orphanage. She then goes to a renowned college. There, Raani meets the village boy Pitchai and she changes him into a perfect city dweller, they slowly become best friends. After the studies, Pitchai and Raani fall in love with each other. Raani becomes a Sub-inspector of police while Pitchai becomes a district collector. Soon, they have to face the smuggler Rajarathnam and his son Murali. What transpires later forms the crux of the story.
Vikas
Raghu, an atheist archaeologist, and his father goes to an isolated village for research, his father disappears mysteriously and Raghu finds out a strange prophecy : God will come to earth on Purnima day at the Nagakali Amman temple and the people who will submerge completely under the waterfall near the temple will be cured of any disease. His colleague Pathma informs her blind Journalist friend Divya and the news reaches the public. Pathma is in love with Naveen, in the final stages of cancer. Soon, an atheist terrorist group, led by Saravanan, try to destroy the temple. Saravanan's sister and brother-in-law were brutally killed by the temple's donor. Police officer Hari, Divya's brother, is charged with eradicating the terrorist group. Pathma believes in this prophecy, gets married to Naveen and takes him to the temple. Divya compels Hari to come with him to restore her sight and he agrees. A race against the clock starts.
Chelladurai
Kalimuthu is the lead singer of a group performing Villu Paatu. The village head decides to reconstruct the tumbledown village temple and gives Kalimuthu responsibility for funding money. Finally, the music director Ilaiyaraaja helps them financially. Then, Kalimuthu approaches a reputed sculptor from another village. The sculptor and his daughter Abhirami come to their village. Later, Kalimuthu and Abhirami fall in love with each other. Abhirami's father wants to marry Abhirami to his nephew Rajasekharan while the village head's son Chelladurai , a womanizer, has an eye for Abhirami. What transpires later forms the crux of the story.
