The Movie deals with two best friends Gayatri and Rajesh and the conflict that arose when in gayatri’s Sisters wedding the groom gets attracted towards Gayatri and vows to marry her instead of her sister Savitri.

Sanju (Sundeep Kishan) is a college going student who falls for a girl Tanvi (Regina Cassandra) at first sight. They get along over a period of time but unsure of the advancing in their relationship because other person might not be perfect.

Anbu, a dubbing artiste, falls in love with his sister’s friend Jyothi, who is in love with Gautham. Just when they are about to get married, an accident changes the course of their lives forever.

The story of Jamal Malik, an 18 year-old orphan from the slums of Mumbai, who is about to experience the biggest day of his life. With the whole nation watching, he is just one question away from winning a staggering 20 million rupees on India’s Kaun Banega Crorepati? (2000) (Who Wants To Be A Millionaire?) But when the show breaks for the night, police arrest him on suspicion of cheating; how could a street kid know so much? Desperate to prove his innocence, Jamal tells the story of his life in the slum where he and his brother grew up, of their adventures together on the road, of vicious encounters with local gangs, and of Latika, the girl he loved and lost. Each chapter of his story reveals the key to the answer to one of the game show’s questions. Each chapter of Jamal’s increasingly layered story reveals where he learned the answers to the show’s seemingly impossible quizzes.

Prabhu(Prasanna), Ilango(Krishna), Sundar(Karthik), Priya and Indra are the best of friends at college, swearing to never lose touch with one another later in life. They manage to get jobs in the same company but Ilango, was whisked away to his village by his dictatorial father(Vijayan) and forced into marriage with Eeswari(Kanika). He then runs away while the friends assume that he is in Bombay with his new wife. A few years later the remaining four are still friends, working in the same company and even living in one house. Prabhu meets Eeswari on the train and without knowing that she is Ilango’s wife, falls in love with her. When the truth comes out she becomes good friends with the gang while they promise to find Ilango and reunite them.

Oru Kadhal Seiveer is about whether it is right if a girl has physical relations before her marriage.

Shanmugakani (K. Bhagyaraj) arrives in the village of Thaayamangalam as the new school teacher and soon falls in love with a local damsel Jothi (Rati Agnihotri). The village head called as “Periyavar” (played by G.Srinivasan) is a lecherous and sinister man who has a lustful eye on Jothi. Amavasai (Goundamani) is Periyavar’s stooge who also has a long-standing desire to marry Jothi. Periyavar frames Shanmugakani for the rape and murder of a woman social activist and gets him evicted from the village and gets Jothi married by deceit to Amavasai. He asks Amavasai and Jothi to stay with him in order to satiate his lust with Jothi. What happens afterwards forms the rest of the story.

Thiru, a local gangster, falls in love with Charu, an NGO worker, and decides to marry her. He changes his profession and starts a new life, but the police arrest him for his earlier crimes.

Kamali (Devayani) lives with her sister and brother-in-law in Ooty and is searching for a job. While in Madras, her purse is stolen and she fears she has lost her university certificates. Suriya (Ajith Kumar) who works in Jaipur finds the purse and sends it back to her, and a love develops through letters and phone calls. They agree to love each other without meeting, and Suriya eventually moves to Madras for work. However Kamali’s brother-in-law is pressuring her to marry a suitable man and Suriya’s boss keeps trying to seduce him. Eventually, Kamali and Suriya unite through a run of coincidences.

Durairaj (Sarath Kumar) is a lorry driver who is tough as a nail. He had a bitter childhood, has no relatives or friends, and his only solace is Jayaram (Jayaram), his cleaner who is just the opposite of him. Jayaram is a happy-go-lucky guy who dotes on his wife Mallika (Meena), mother (Vadivukkarasi), and daughter, and dreams of making enough money to build a small house for his family. Durai and Jayaram share a special bond, as they understand each other well.

On his way to see his family, Jayaram dies in an accident, and Durai goes to his village with the body. There he finds that Jayaram’s family needs his help, and out of sympathy, he decides to settle there and build a small house according to his friend’s last wish. There he comes across a local landlord Vijayan (Vijayan), who cheats the illiterate villagers by giving them loans and later taking over their property. Then there is a tea shop owner Vasantha (Ramya Krishnan), on whom the entire men folk lust. But she is hardworking, and at the same time foul-mouthed and a terror. Vasantha’s brother, who is in love with Vijayan’s daughter, starts the fight between the Vijayan and Durai. Durai works hard to make a house for Mallika, and when the villagers suspect his good intentions, he proves to them that he has a sisterly affection towards her, as he has a soft corner for Vasantha. As the fight goes on for Durai and Vijayan, Vijayan destroys the house that Durai built for his friends. Of this anger, he tries to get revenge. How Durai wins over the villagers and fights against injustice against Vijayan and his son forms the rest of the story.

A spoiled young heiress marries a poor man in order to inherit her grandfather’s property.

A man, who lost his Muslim friend as he was in a relationship with a Brahmin woman, is hesitant about love. However, a woman falls for him and tries to help him overcome his past.