The movie begins in a remote village in Madurai where Sivagiri, a blacksmith and his sister Karupayi share a close bondage. Sivagiri wants to get his sister married off to a city dweller. He along with his friend Kannappan manages to find an alliance in Saligramam, Chennai. After the wedding, when Sivagiri comes to Chennai to leave his sister and her husband, he encounters rowdies and anti-socials who have a free-run in the city. He wonders why the city-dwellers are maintaining a mute silence to the anti-socials. In the meanwhile, he also falls in love with Subha. In a tussle at a theater in Chennai, Pattasu Balu and Sagadai Saniyan's men murder Kannappan. The death sparks a turn of events in Sivagiri's life. He vows to put an end to all criminals in Chennai and clean the city of rowdyism. The rest is all about how he achieves his mission. Written by ~~

Thirumalai (Vijay) mechanic who lives in Pudupet and has three close friends for whom he would do anything. Raghuvaran is an artist who comes to stay near Tirumalai's mechanic shop with his wife Nagalakshmi (Kousalya). Thirumalai happens to meet Swetha (Jyothika), on a New Year's Day. As she appears in front of him all of a sudden, she happens to greet saying 'Everyone will do fine'. From that very day, things start to shine up in Thirumalai's life. He falls in love with Swetha as he thinks that good things started to happen in his life only after she greeted him. Swetha first ignores him, but soon she understands his nature and reciprocates. Meanwhile Swetha's father (Avinash), a business tycoon who owns six satellite channels hates the idea of a mechanic being his son-in-law and seeks the help of a local thug Arasu (Manoj.K.Jayan) whose only job is to kill people for huge money. Arasu plots an attempt to kill Thirumalai. Does Thirumalai succeed in winning his girl or is he caught up in the plot against him forms the rest of the story. Written by Manoj M K courtesy Wikipedia

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Industrialist Viswnath's (S.P.Balu) son Vijay (Vijay) comes home after completing his education abroad. Viswanath's personal secretary Radha (Simran) has several problems to deal with - an elder sister deserted by her husband, an unmarried and pregnant younger sister, an unemployed elder brother and she herself has a congenital heart. Vijay, who is used to western culture, has a different background and without any inhibition sits for drinks with his father. He has only one problem i.e. how to blow the riches piled up by his ancestors. Vijay decides to get married on a contract basis and how he achieves this forms the rest of the story. Written by Anonymous

Enroute overseas, Sachein reflects on his college life, his friends, as well as fellow-collegian, Shalinii, who he had instantly fallen in love with. She, too, is attracted to him, but is practical-minded and believes that true romance can only take place after a couple have known each other for some time. Both continue meeting but she is offended when she finds out that graffiti has linked their names together. She suspects his hand behind this, but he denies it, and she asks him to prove his love within 30 days. He sets about to woo her not realizing that their lives will undergo many changes after the entry of Gowtham/Singhania, and Manju - who is determined to make Sachein fall for her - while her parents have already made arrangements for her marriage with a male settled in Canada. Written by rAjOo (gunwanti@hotmail.com)

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Gurumoorthy (Vijay) is an Master of Business Administration (MBA) college student and is an athlete. He participates in a state level running competition where he meets Sriman who also participates in the competition. Guru understands that Sriman needs to win the competition which will help him secure a job through sports quota as he is the only bread winner for his family. Abinaya (Shriya Saran) is the daughter of a rich businessman Anand Chelliah (Ashish Vidyarthi) and is a friend of Srimans sister. Abinaya challenges Guru that Sriman will be the winner of the competition. Guru decides to run slowly so that Sriman can become the winner. Later Abi understands that Guru has purposefully run slow behind Sriman and starts liking his character. They become good friends and slowly love blossoms between the two. Suddenly, Guru visualizes a few bizarre incidents which also occur sometime later. Guru consults a psychiatrist and he says that Guru suffers from a syndrome called Extra Sensory Perception (ESP) whereby he can get to know about certain future incidents. Guru worries that such thoughts disturb him mentally and he cannot live a peaceful life. Guru and Abis parents get to know about their love and they plan to get the couple married. One day, Guru dreams of stabbing Abi and gets frightened that Abi will be killed by himself someday. So he decides to stay away from Abi for a few days and leaves to Mumbai without informing anyone. During the train journey, he sees Prasad (also Vijay), a fradulent bank employee from Mumbai, getting down in a station. Now Guru believes that it would be Prasad, a look alike of Guru, who will stab Abi and follows Prasad. But while crossing a road, Guru meets with an accident and gets hospitalized by the local people. Meanwhile Abi starts looking for Guru as he has not contacted her for a few days. Now, Abi meets Prasad in a shopping mall and mistakes him as Guru. Abi talks to Prasad and takes him to her home. Prasad is money minded and a womanizer, who was once born with a rich and wealthy lifestyle, only for it to end, when his parents died in a plane accident and their business partners took all the money away. Prasad understands that he has a look alike and Abi has mistaken him as her lover. Prasad decides to utilize the opportunity and plan to get married to Abi, so that he can lead a lavish lifestyle, with the help of a corrupt jeweler (Sayaji Shinde) . Guru gets discharged from the hospital and tries to contact Abi. He also comes to Chennai to meet Abi at her house. Now everyone is shocked seeing Guru and Prasad as they both look exactly similar and Abi is confused unable to find who is Guru. Prasad pretends as Guru and makes everyone believe. They conduct a running race to find the real Guru, as Guru is an athlete. But as Guru is not well due to his accident from Mumbai, Prasad wins the race which makes Abi believe Prasad as Guru. The next day, while Abi talks to Prasad, she finds that he misinterprets an event occurred before which makes her realize that it is Prasad who is with her and not Guru. She tries running away from Prasad while Prasad chases her. Guru comes to the rescue and tries to kill Prasad. When Guru is about to stab Prasad, he moves and Abi gets stabbed by Guru. Guru is shocked and Prasad beats up Guru and takes Abi with him. Prasad admits Abi in a hospital and again pretends as Guru. Abi believes that Prasad is Guru. Abi tells that how come someone is try to taking away a girl who is in love with someone else and she says that Prasad must not have born to legitimate parents. Prasad realizing his cheap behaviour, upon hearing this and confesses that he is Prasad and not Guru. Meanwhile Guru also rushes to the hospital. Prasad apologizes to Guru and Abi and leaves the place. On the way, he meets Dhanalakshmi (Namitha) whom he met during the train journey and unites with her.

Badri (Vijay) is the youngest son of a family and a careless guy, always going around girls and enjoying with them. His womanizing habits are a source of heartburn for his father (Kitty). However, his elder brother, Vetri (Riyaz Khan), a kick-boxer and his father's favorite son, is very fond of him. Janu (Bhumika Chawla), Badri's neighbor, is in love with him, but it is just one sided as Badri considers her a good friend and a source of money and cars to impress girls (Janu's father is a garage owner). He falls in love with Mamathi (Monal), a rich girl, and poses as a rich guy to impress her. However, she soon finds out Badri has lied to her. Mamathi dumps Badri and insults him in front of his father. Badri's father, tired of his son's antics, disowns him. Later Vetri is attacked by his enemies and is bedridden, unable to take part in the kick boxing championship. Badri decides to fight in his brother's place to redeem his family name as his father always wanted his son to win the kick boxing championship. So he trains hard and fights against Rohit, who happens to be Mamathi's new boyfriend. He defeats Rohit, redeems himself in front of his father's eyes and finally accepts Janu's love. Written by Sriram Vikram

Bhoominathan aka Bhoomi is introduced to us as a person who gets into many local fights. Worried about his future, his family sends him to Muthuramalingam (Raj Kiran), a much respected personality in his place Semmanur, to put Bhoomis life on the right track. But things dont go as planned. Muthuramalingams adversary threatens to kill his daughter Meera (Asin) as a revenge against his own daughters fate. So Bhoomi is given the job of Meeras bodyguard at college. Meera goes to college with her friend Madhu but is irritated by Bhoomis presence everywhere. So she devises a plan. Written by Anonymous

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Vetrivel, a car racer, learns that a Malaysia-based don owes his father a huge sum of money. However, when he meets the don, he realises that his missing father may still be alive and held captive.

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