Kannan, a poor man, moves to Chennai in search of a job. Circumstances force him to pretend to be the husband of Anjali, a rich woman. What happens next?

A man has limited time in which to make a woman fall in love with him.

Sachein (Vijay), a carefree and happy going guy joins a college in Ooty and falls for Shalini (Genelia) immediately on seeing her in first sight. Shalini studies in the same college as Sachein and is considered a popular and beautiful student, while also being a short tempered and arrogant girl with an upper-middle class status. Sachein comes to know all of this information about her from Arnold aka Ayyasamy (Vadivelu), who is a guy that studies in the college for about nine years and keeps studying there because he thinks that students should give their respect to their college professors, while also informing Sachein, that there are so many boys trying to impress her. This makes Sachein take a different route and he starts mocking Shalini in front of her, which irritates her. Slowly, they both become good friends, after Sachein saved her father in a bike accident. Santhanam (N. Santhanam), who is another student in the college also loves Shalini. But, he feels jealous seeing her and Sachein being good friends and decides to separate them. Santhanam writes in one of the walls of the college, that Sachein loves Shalini and this angers Shalini, as she misunderstands that only Sachein has done it. Shalini shouts at Sachein, but Sachein informs Shalini, that he is so outspoken and does not want to write in the college wall to convey his love, which makes Shalini realize her mistake.
But to her surprise, Sachein informs that, although he has not written it, but the content present on the wall is true which means that he is in love with Shalini. This again angers Shalini and she shouts at him that she considered him only as a good friend and that she wasn’t in love with him. Later, Shalini overhears Sachein challenging Santhanam that Shalini will convey her love within the next thirty days, as their college years will be completed by then. Shalini challenges Sachein that she will never fall in love with him.
Manju (Bipasha Basu) is also from the same college and she likes Sachein. Shalini gets jealous when she spots Sachein and Manju together often. But Manju informs Shalini that Sachein loves Shalini so much and asks her not to hide her feelings, as it is very evident that Shalini too likes Sachein. This makes Shalini realize her love towards Sachein. Sachein comes to know that Shalini’s parents have arranged a wedding for her and he meets Shalini on the last day of their college and says that he has lost the challenge and he will be leaving Ooty tomorrow. But Shalini hides her feelings towards Sachein and she plans to propose her love the next day as she wants to win the challenge by not conveying her love within the 30 days.
On the 31st day, Shalini is excited and goes to propose Sachein. But suddenly, she meets Gowtham (Raghuvaran) on the way, who is Sachein’s father. Gowtham is a billionaire, in which this fact makes the entire college be surprised that Sachein is the only son of a rich business tycoon, as Sachein always stays very simple and down to earth. Now Shalini feels bad, that if she proposes her love towards Sachein at this moment, then he might misunderstand that she decided to marry him after knowing that he is so rich and decides to stay calm. Sachein leaves to the Coimbatore International Airport in Coimbatore and Shalini also follows him. In the airport, Shalini could not control her emotions and proposes to Sachein. She also revealed that it is her ego that didn’t let her convey her love during the last thirty days. Sachein feels so happy and the couple are united.

Owing to his insouciance, a naturopathy practitioner’s relationship with his son turns sour. However, the duo must reunite to save a medicinal mountain from the claws of a cunning businessman.

Shankar is an orphan raised by a sincere police officer named Raja Rao. His son Bharath accidentally kills a kid and Shankar takes the blame on him. Shankar is imprisoned and Raja Rao warns him not to meet him again. After graduating, Shankar is employed as a circle inspector of police. He is popularly referred to as ‘Encounter’ Shankar because of his track record as an encounter specialist.
He is transferred to Bukkapatnam town in Tadipatri, Ananthapur district. He is assigned the task of halting the illegal businesses of Damodar, an influential crime boss whose dream project is to build a power plant. Using his wits, Shankar destroys all the three main businesses of Damodar by trapping their respective in-charges. He brings a stay on the power project by bringing few vital witnesses before the court of law, thereby earning Damodar’s ire. On a parallel note, Shankar loves a sweet shop owner named Saroja who reciprocates her feelings at a later point of time.

Rasu (Santhanam) and Mokkai (Ganja Karuppu) are youngsters sharing a hostel with a diverse group of people. Those people include Professor Mani (Madhan Bob), a staunch atheist Thanjai Rudran (Rajesh), a poet, and other unemployed, struggling men. Rasu, who works in a coffee shop, is in love with Mahishasuramardhini (Madhumitha), but she seemingly ignores all his advances. Rasu was even attacked by her brother after hanging around her house for extended periods of time. Mokkai, who is unemployed due to his lack of education, and does whatever job he can find, dreams of marrying his uncle’s daughter back in his village. After a particularly bad day where Mokkai is arrested and beaten by female police officers and Rasu’s lies of being in a well-paid job are uncovered (to Mahishasuramardhini’s disgust), the two are also kicked out of the hostel by the owner due to the inability to pay rent. On their last night, both vent their frustration at Kadavul (God) after heavy drinking. Both are shocked when Kadavul (Prakashraj) appears in front of them. Mistaking him for another unemployed fellow, the two head back to their hostel room only to find Kadavul waiting for them in it, waving aside this miracle, all three fall asleep. The next morning, Kadavul finally manages to convince Rasu and Mokkai of his true identity after appearing in the forms of Vishnu, Jesus and Buddha.

Palakattu Madhavan (Vivek) is a lazy, irresponsible man. Embarrassed his wife Lakshmi (Sonia Agarwal) earns more than him, he quits his job out of spite. He then adopts the old woman Pattu Maami (Sheela) as a surrogate mother because she offers to pay cash for the opportunity. The character “Palakkattu Madhavan” is also an acknowledgement of a character with the same name in the movie Antha Ezhu Naatkal starring Bhagyaraj and Ambika.

Sathya is an unemployed youth from Thanjavur] who goes to Trichy every month to meet his old childhood friend Sivakozhundhu, who is a hotel manager and spend his day with the latter’s salary. One such time, he meets Ramya, a bank manager, and falls in love with her. He believes that if he sees a girl three times a day casually, she will be her lucky lady. He meets Ramya twice and goes all over Trichy with Sivakozhundhu in search of her. He decides to stay there that night. Just before 12:00, he sees Ramya celebrating her birthday in the hostel opposite to Sivakozhundhu’s room. The next day, he proposes to her in her bank.
Meanwhile, Sivakozhundhu decides to send Sathya off by all means. Sathya is in turn appointed as Sivakozhundhu’s assistant in a 2.5 star hotel, where Sivakozhundhu worked as a manager earlier. To improve their hotel’s condition, he asks for a loan from Ramya’s bank and uses it. The hotel is developed. One day, Sathya and Ramya are chased by thugs, who are the henchmen of a lady whom Ramya chucked out of the hostel as she had stolen other’s valuables. Sathya saves Ramya from the thugs. The next day, Ramya tells him that she had once committed a murder and has gone to prison for the offense. This frightens Sathya, but Ramya says that once in Chennai, she was chased by a dog, whose owner is her former boss. She kicks the dog and it dies, but the Blue Cross members see this and take Ramya to court, where she is imprisoned for 10 days and fined Rs.5000 for killing the dog. Sathya laughs at this. Ramya is hurt and asks him to get out of the station or else she would go out of town. That night, Sathya and Sivakozhundhu decide to commit a crime and go to prison so that they could understand the pain of being in prison. They get heavily drunk and beat up “Scorpio” Shankar, a local don.

The Chennai Sharks team, years after their happy go-lucky days, re-unite to celebrate the marriage of one of their own. In the events leading to the marriage, they end up enrolling for a cricket tournament which puts an ugly twist to the planned wedding. To get their friend’s life back on track, Irony has the final say – They have to play another tournament to get a chance to make amends. Do they ‘still’ have it in them?!

The lives of a few people get affected when ego clash erupts between a few cut-throat loan sharks.

A political satire, the movie chronicles the highs and lows of Nagaraja Cholan, a deputy Chief Minister’s ambitious career.

A young man from a weaving family vows to restore it to its past glory by taking on a textile magnate.