A cat-and-mouse game engages between a blind woman and a serial killer when the former becomes the witness of a kidnap performed by the latter.

It is an attempt to tell youngsters to stay in India and contribute to its growth rather than resorting to go abroad.

Jyothi Lingam (Mahesh) is a bright student and son of a mason who leads a happy life in his village near Tirunelveli. One day tragedy strikes as his father, the only earning member of the family, dies in an accident while crossing an unmanned railway gate. Mahesh now has to look after his mother and two sisters. Due to circumstances, he is forced to abandon his studies, even though he comes first in his school in the board exams. Through a canvassing agent, he and his friend Marimuthu, get jobs as sales boys in a textile showroom in Ranganathan Street in Chennai. Mahesh, along with hundreds of others, are employed at the Senthil Murugan Stores run by the big Annachi. On each floor at the textile showroom, there are around 50 to 60 sales boys and girls who work in pitiable conditions from early in the morning to late night, without any rest. He meets Kani (Anjali), a fiery independent girl.

Ravi, a shopkeeper, falls in love with Uma, a student, who belongs to a rich family. But their relationship is tested when Uma’s brother decides to intervene and break their bond.

Chinnadurai (Major Sundararajan) owns a huge estate that grows and processes tobacco and tea leaves. Due to advancing age, he is concerned about leaving control to his son, Kalyana (Kamal Hassan) and the cunning deceit of his manager, Ramiah (Thengai Srinivasan). Kalyana is immature and naive, and easily manipulated by the cook, Samipillai (V.K. Ramaswamy). He is also deeply in love with Shenbagam (Sridevi). Ramiah, Samipillai, Perumal (Senthamarai)(Shenbagam’s father), and Ligappa (a hired thug) plot to murder Chinnadurai and swindle the property from Kalyana. Ligappa mortally wounds Chinnadurai, and on his death bed he confesses to his son that he was born a twin, abandoned his first wife Rajulakshmi (Puspalatha)and his brother Raman (Kamal Hassan). After his father’s death, he conveys this information to the cook, who tells him he will go to Madras and bring his relatives home. Instead, Samipillai goes to a side show, and hires a married couple Rangamani (Manorama) and Kittu, to pretend to be the lost mother and son. One day the entire gang is in a room, laughing at how they had duped Kalyana and will steal everything. He overhears, and runs to tell the police. They chase after him and throw him off a cliff, observed by Shenbagam, who goes mad. Kalyana’s ghost travels to Madras and confides everything to his brother, Raman. He wants his brother to go home, exact revenge, and take care of Shenbagam…..

The story revolves around a mother-son relationship set in Kodaikanal. The movie commences with Rama Krishna (Jiiva) and his mother Saradha (Saranya Ponvannan), a school teacher, lying in a pool of blood. The police finds that Raam is still alive and arrests him on charges of murdering his mother. Police Inspector Umar (Rahman) works on the case. The story is narrated in a flashback. Raam is a mentally affected teenager (later diagnosed as autistic) living dependent on his mother. His overcompulsive adoration for her lands her in various problems. Raam is provoked easily and tolerates little wrongdoing around him. Next door lives Karthikayeni (Gajala), the daughter of a Sub-Inspector Malaichamy (Murali). She falls for Raam, but upon telling him how she feels, gets a blunt response from him. One day, Saradha is found brutally murdered. Umar grills each and every person connected to her and Raam. Every possible motive Raam might have for murdering his mother is explored. Raam’s neighbors, Malaichamy, and his children are summoned by Umar for interrogation. The police eventually find out that it was Karthika’s brother Satish (Kunal Shah) who committed the murder, fearing Saradha would tell his parents about his drug addiction. When Umar confronts Satish and forces him to surrender, Satish fatally wounds him and escapes, injuring his father in the process. On finding her brother’s hideout, Karthika tries to plead with him to surrender, but he refuses to do so and ties her up. Raam, seeking vengeance, finds the hideout. A brutal fight occurs between the two, and Raam kills Satish. The film ends as the police find the hideout while Raam is meditating on a dilapidated roof.

The film opens with the killing of a police officer by cocaine mafia lord Bhai (Hareesh Peradi) and his henchmen. Kokila (Nayanthara) struggles to find a job to take care of her parents (Saranya Ponvannan and R. S. Shivaji) and sister (Jacqueline Fernandez). She stumbles on the cocaine smuggling business of Mohan (Charles Vinoth). When her mother is diagnosed with lung cancer, Kokila is forced to work for Mohan. Her cunning earns her a name in the business. The new inspector Guru (Saravanan) is a no-nonsense cop and cracks down on drug dealers. Kokila is almost caught a couple of times but manages to evade the authorities. She convinces Mohan to kill two of his henchmen suspected of leaking information and then decides to quit the business. Mohan seemingly accepts but tries to rape her. She beats him up and tries to flee with her family but is caught by Bobi, who had recruited her initially. He demands that she deliver a one last consignment of 100 kilos to Alphonse (Rajendran). Kokila is forced to accept and enlists the help of her family. She delivers the load, but it is revealed that she switched most of it for salt. She then tricks Bobi to double-cross Bhai and then frames him for swindling Bhai. She has him killed and continues the shipment run. On the way, she is caught by the police, who were Alphonse’s men in disguise. She manages to avoid getting raped and kills off her captors. Guru tracks her down and arrests her. Kokila makes a deal with him to nab Bhai and bring the whole drug business down. The plan works out, Bhai is shot dead, and Kokila and her family escape punishment. In the end, the family starts a business of Kolam powder, calling it ‘Kokila Kolamavu’.

Arivazhagan, an irresponsible youngster, receives an opportunity to contest the elections. So, he decides to mend his ways and become a better person.

Vishu and Ramu are a pair of Indian twins living in America with their father, Rajamani. When Madhumita (Aishwarya Rai) and her brother come to America to get medical treatment for their ailing grandmother, Vishu and Ramu end up meeting them at the airport. Vishu falls in love with Madhumita, and the couple has everyone’s blessing, except for Rajamani, who is estranged from his own twin brother. He only wants his sons to marry twin sisters, so Madhumita pretends to have a twin in order to please him. As Madhumita puts on a charade by creating Vaishnavi, all goes well, until Ramu falls in love with Vaishnavi. Now the truth must come out, before Madhumita has to marry both of Rajamani’s twin sons.

A boy raised in a cemetery grows up with no social skills, and leads a turbulent life readjusting once he moves out of the cemetery.

A college student must win an inter college competition to save his college from being demolished by property builders.

College students, Shakthi and Josesh, fall in love with girls of the same family. When the family learns about the love affairs, they are ready to go to any length to save their honour.