A handicapped man Krishna (Suriya) arrives at Mumbai from Kanyakumari at a train station after boarding a train from there. He, along with a taxi driver Raja (Soori), travel around Mumbai to look for his elder brother, Raju. Raja tries to get to know about Krishna but is unable to get any details about him from him. Krishna rents a hotel room, takes a shower, and changes his clothes. He gets Raja to take him to a club, where Krishna then tries to meet an old associate of Raju named Amar, who is a very powerful gangster through his henchmen, but fails. He then meets a close friend of Raju named Rajiv (Asif Basra), who overheard his conversation with Amar’s henchmen. Rajiv tells Krishna that Raju is Raju Bhai (Suriya), a powerful and feared gangster. He then tells things to Krishna about Raju, until he passes out from being drunk.

A young woman travels to Texas to collect an inheritance; little does she know that an encounter with a chainsaw-wielding killer is part of the reward.

A courtroom drama in which two talented self made lawyers are determined to win a case where they are on opposing sides.

The lives of three different men named David are about to change forever.

The journey of a military officer who has been assigned to fight aliens.

The movie starts with Sugan (Karthi) and his friend Parasuram (Premgi Amaren) being chased by cops. The flashback shows Sugan as a womaniser who has a weakness for Biryani and Parasuram who is his childhood friend. Sugans womaniser attitude always gets him into a fight with his girlfriend Priyanka (Hansika Motwani). Sugan and Parasuram attending a function for branch opening of one of their offices where they meet Varadharajan (Nassar), who is the chief guest for the ceremony. In the meantime, its shown that a CBI officer Riyaz Khan (Sampath Raj) has been deputed to track Vardharajan’s illegal activities. Varadharajan gets impressed with Sugan and decides later to make him his son-in law and this decision gets him into an argument with his other son in law Vijayakrishna (Ramki).

When giri marry’s her sister to a man in chennai and comes to visit the city his friend his brutally murdered by gangsters. He decides to murder the three gangsters ruling chennai to make the city a better place.

The film opens with a funeral partaking in an apartment where the police are involved saying he doesn’t understand the motive of the murder of Ram. His wife Janani hallucinates about her husband running away. She recalls memories and it continues with a flashback when Ram and Janani were 12th-grade students.
While she was from a middle-class family and Ram at that time lived with his father who was a businessman and his mother. After he saw Janani he helps fix her bicycle (it was raining heavily) but at the same time has a crush on her. He tells his friends Kumaran and Senthil about it they were from different schools but same tuition. One night he and Senthil stalked Janani and was caught by her father as he questioned them both. He slapped Ram and scolded Senthil for lying and warned them. Nevertheless, Ram visits Janani before he could ask she reciprocates his love. Janani’s sister Sumi makes sure her parents aren’t aware their secret love. The story returns to reality while Janani has a teary conversation with her mother about Ram. Soon she slept having a dream about when her family has a visa to go to the US and she had to go. When Ram heard this he decided that she could leave him. Instead of leaving him she appeared near him. He said she burned her passport and her mother disowned with a slap. She then urged Ram to marry her because of their five-year relationship. So he told his mother then urged his father who did agree and gave them a flat.After their marriage, Ram persuaded that her family to come and see her for she felt uncomfortable.He made a promise to not hurt her or allow anyone to. Ram and Janani were pleased with their life and were happy together.

Deva and Shiva (both played by Ajith Kumar) are twins. Deva, the elder, is deaf and mute; but he is a genius, an expert at lip-reading, and the head of a successful advertising company. Shiva loves and trusts his brother. Priya (Simran) wants to marry someone who is an ex-smoker, ex-drunkard, and who got ditched by a girl but is pining for her. Learning this, Shiva, with the help of his friend Vicky (Vivek), invents an old romance between him and Sona (Jyothika), and finds his way into Priya’s heart.
Meanwhile, Deva chances upon Priya and lusts for her. His obsession continues even after his brother gets married to the girl of his dreams, and he devises various means of getting close to Priya and keeping Shiva and her separated.

A brother and sister get caught up in a fast-paced and intriguing plot.

A lawyer turns judge jury and executioner and goes after a gang, led by a minister’s son, that threatens women with videos of them.

An honest policeman reluctantly arrests his brother who has been accused of murdering his lover. Soon after realising that he is innocent, the officer sets out to serve justice to his brother.