The film is about a parallel college teacher who owns a bizarre and timid personality which forces his friends to fool him by posting him letters in the name of a girl. He gradually develops an intimate relationship with her but all his efforts to meet her are in vain. What happens when he actually meets her, and comes to know that she even had no idea about his existence, forms the crux of the story.
A man saves the son of a local don from rivals, and gets a job in the don's gang. Things change when he falls in love with a girl who wants him to quit the gang.
Nithin falls in love with Nandini and tries to woo her while their friendship blooms. However, Nandini leaves for a Europe trip with Reddy Garu without informing him which causes him to tail them.
Gudumba Shankar falls in love with Gowri and finds out that she is being forced to marry Kumar Swamy, a gangster. Shankar tricks Kumar Swamy and gets married to Gowri.
Vinod/Vinu (played by Mohanlal) is mentally ill and is hospitalized in the institution run by Dr. Ravindran ( M G Soman). Story progresses as Vinod recovers with the help of Dr. Savithri, Dr. Ravindran's daughter (Karthika) and Dr. Unnikrishnan (Nedumudi Venu) who finds that Vinu fell ill after the accidental death of his fiancée Anitha (Lizy). Later Vinu and Savithri fall in love but Savithri is already engaged to be married to her cousin, Hari(Mukesh). Plot progresses as Dr. Ravindran opposes the romance between the doctor and the recovered patient.
Shaktivel and Angel, who belong to rival villages, fall in love with each other. However, as Angel's father is unhappy with her choice of groom, he forces her to become a nun.
Indu makes her boyfriend Krishna act like her friend Bhoomi's lover so that her family will stop searching for a groom. However, their lives takes a turn when Bhoomi falls in love with Krishna.
A girl falls for a violent man, who keeps taking law in his hands and beats people up. She wants to marry to him and eventually even he says yes, but her father has a condition that he should control his anger and work with him in his factory.
An unexpected turn of events happen in the lives of a few people who arrive in the same city on the same day and it connects them in a very intimate way.
A young man, on the advice of an agent, lies that he is married, to go to London. But his visa application is rejected and now, he has to follow-up with a string of lies to hide one lie.
A newly appointed professor finds that his student has a crush on him and wants to marry him. He ignores her advances and marries an orphan. Not the one to give up, she continues to pursue him.
The story starts in a jail, where prisoner Muthupandi (Prabhu) is being interrogated by a police officer (Vijayakumar) about his past. Without hesitation, Muthupandi tells. Muthupandi is a son of the soil, a very hard working self-made man who dotes on his only sister Kavitha (Trisha Krishnan). Their mother died very early and it was Muthupandi who brought up Kavitha with a lot of love and affection. Kavitha’s best friend Lalitha (Richa Pallod), who is getting married, takes Kavitha to her house for the nuptial ceremony. As an emotional scene prior to this notes, this is the first time Kavitha has been away from her brother.
Influenced by an astrologer, Pedababu fixes his sister's wedding with Arjun, an orphan, and plans to get him killed. However, Lord Krishna comes to Arjun's rescue.
Dinakaran, a college student who becomes the leader of a gang, is unlucky in love. Soon, he tries to find true romance in Poornima, a woman who rejected him once before.
Sundarapandiyan , who has finished college and goofs around in his village with friend Murugesan , decides to pitch in when Arivazhagan seeks his help in wooing Archana . But she rejects Arivazhagan and also another suitor Bhuvaneshwaran. Complications arise when she says she has been in love with Sundarapandiyan for a long time.
A man, who is the youngest in the family and much pampered, is detested by his elder brother. He falls for a girl and decides to meet her family, but out of animosity, his brother damages his image in front of them.
A criminal group wants to stop a courier that has damning evidence against them from reaching the hands of an activist, but they underestimate the young man who has to deliver the package
A politician refrains his daughter from finishing college as it would affect his politics. He decides to get her married to a police officer of the same caste, but things don't go as planned.
The story centers on six youngsters, who experience the downfalls of teenage life. The film conveys a message about the importance of a good education and career over other distractions, such as romance and sex.