One morning in his house, Saravanan receives his ex-girlfriend Meera’s wedding invitation. He and his friend Paarthasarathy aka Paartha leave for Pondicherry to attend the wedding via car. En route, Saravanan recollects his past: He was a ruthless youth working in a film theatre with Paartha. He lives with his parents; his father, Varadharajan, who is educated and works as a college professor and his mother, Shenbagam, who is uneducated and is trying to pass an exam, just to get her college degree. One day in traffic, he sees Meera, a girl training to be an air hostess and falls for her on site. He follows her to a cloth shop and also to her Air Hostess class. He saw her house and he and Partha go to her house, as Meera calls them. There, Meera threatens Saravanan by showing her father’s photo, who is a Deputy Commissioner of Police (DCP), Mahendra Kumar. But still, Saravanan follows her and asks her to love him. Meera takes him to Mahendra Kumar’s office and he asks Saravanan to stop following Meera. Meera tells Saravanan that she has some qualifications required by her lover like shaving regularly, dressing well, breaking his friendship with Paartha, coming on time, etc. Saravanan tells this to Partha and Partha asks him if he or Meera is best for him. Saravanan tells him Meera is more important to him than Paartha, causing a break between Saravanan’s and Paartha’s friendship.
Later, Saravanan joins Paartha’s broken love and asks him to rejoin his love. Partha agrees and then they go to Mumbai, following Meera in a flight. There, Meera alas tells him that she loves Saravanan. After some months, Meera calls Saravanan once, but he does not pick up the phone and tells Paartha that Meera is not his real love and it is all nothing, but a drama. But, he really said that for fun. But, Paartha had accidentally switched on the phone while Saravanan told him all this. Meera, mistaking him for intentionally misusing her, comes there and breaks their love. Now, at Pondicherry, during Meera’s marriage, both Saravanan and Partha end up drunk and tell a small story, in a comical way describing the broken love of Saravanan and Meera. Just as the marriage is going to happen, Rajini Murugan, a local don, comes there with a pregnant girl and his girlfriend and reveals that Meera’s groom has a girlfriend, who is pregnant by him and that the girl Rajini Murugan is with, is that girl. The groom admits to his mistake and reunites with his old girlfriend. Saravanan and Paartha walk off the marriage hall, just then Meera comes and hugs Saravanan, hence reuniting with him.

After his wife’s murder he give up Mumbai and goes to a village with his two sisters for their safety.

A local barber’s fate turns overnight when he becomes the single deciding vote in the village elections.

The true love between a couple in 1910, 1960 and 2012. Their love is so strong that even destiny wants to bring them together.

The movie starts with Raghu (Jai) trying to kill his father for not taking good care of his family. That is when he comes to know that he owns an ancestral property in Kasi which was given as lease almost 100 years ago. At the same time, an IT raid takes place in a minister’s house. The minister hands the laptop having his property detail to his auditor, who demands 5 crores to hand over the laptop. In Kasi, Raghu’s ancestral property is taken care by Seenu (Jiiva), but he is unsuccessful. It is then showed that Seenu and Raghu had been cheated by Ganesh (Shiva). They move to Karaikudi to get hold of Ganesh and get back their money. Meanwhile, the minister starts his journey to get back the laptop. How Raghu and Seenu get back their money and how the minister gets back the laptop forms the rest of the story.

A Sathyamangalam-based photographer Gopi and his assistant Alagumani arrive at a remote village called Mundasupatti on an assignment. The natives of this village are superstitious; they fear getting photographed, believing it will lead to death. Gopi falls in love with the village chief’s daughter Kalaivani but is constantly troubled by her uncle Muniskanth. Does Gopi get his lady love?

Nallasivam (Kamal Haasan) and Anbarasu (Madhavan) are drawn together by the strings of fate after they come into contact at the Bhuvaneshwar airport. Anbarasu is an advertisement director, while Nallasivam is a trade unionist. Fate entwines their travel plans, and they end up travelling to Chennai together. In the course of their journey, Anbarasu, born with a golden spoon, is touched by the realities of the sufferings of a normal human being when he witnesses the dead and the injured during a train accident, and he volunteers to donate his blood, which is of a very rare group, despite his fear of blood. The flashback of Nallasivam is recounted during one of their journeys. Nallasivam is a communist trade unionist, who fights for higher wages for his comrades. By chance, he falls in love with the daughter Bala (Kiran) of a rich industrialist, Bala’s father, Padaiyacchi (Nasser).

Ganga (Jyothika) lives in a village and secures state second rank in XII board exams. Although she wishes to pursue engineering, her father Veluthambi (Murali) plans to get her married to Adhithya aka Adhi (Madhavan) who also hails from the same village. Adhi is a fun loving person who has just completed his law degree and prefers to enjoy his bachelor life and is not interested in marriage.
Adhi comes to the village and meets Ganga trying to convey his feelings. To his surprise, Ganga also is not interested in marriage as she wants to study engineering. Both of them decide to somehow stop the wedding by creating some problem before the wedding but all their effors go in vain as both the families get even closer following their plans.

Saravana Perumal (Deepak Dinkar) is a television anchor who is experiencing hard times in both his professional and personal life. He is being bested at his workplace by a colleague, harassed by a loan shark, and fears his girlfriend Deepika (Neha Ratnakaran) is having an affair. Saravanan chooses to escape his troubles by going to a party with his friends where he becomes intoxicated. While drunk he unknowingly tells Mark (Rajendran), who is a hitman, to kill his competitor at work, his loan shark, and Deepika. When he wakes the following morning, he finds that his colleague and his loan shark are dead, and a call from Mark telling Saravanan that he has done what he has asked. Saravanan tries to prevent Mark from killing Deepika. Toward the end, it is revealed that Mark’s targets all died by accident before Mark could kill them. While attempting to kill Deepika, Mark falls from a ledge and dies, without Saravanan knowing his true identity as he was drunk when he met Mark. The end shows Saravanan being paranoid that every man who meets Deepika, now his wife, is secretly Mark and trying to kill her without ever knowing that the real Mark is dead.

Govindan (Manivannan) is a thief who has two children. Aadhi (Pasupathy) and Mathi (‘Chiyaan’ Vikram). Years go by and the two, Aadhi and Madhi, decide to stop stealing and mend their ways and lead a hardworking life along with their father. They migrate to neighboring village and meet a retired agricultural officer, Chidambaram (Vijaya Kumar) who is in deep debts and is under pressure from the village’s landlord, Kalingarayar (Murali) to clear his debts. In efforts to help Chidambaran, Mathi confronts Seetha Lakshmi (Asin), Kalingarayar’s daughter, who comes to collect the money Chidambaram owes her father. Seetha Lakshmi starts to acquire a liking for Mathi but keeps it hidden due to her father’s atrocious temper. In an attempt to teach Kalingarayar a lesson, Mathi forcibly ties the mangalsutram around Seetha’s neck. Kalingarayar, realizing his daughter’s love for Mathi, comes down to arrange a grand re-marriage between the two. But things go awry when Manicka Vel (Biju Menon), Seetha Lakshmi’s maternal uncle comes to town in an effort to stop the wedding between the two as he has plans of marrying her and wiping her family fortune.

Arvind, an ordinary Joe who is not noticed by any, be it at home, school or among friends falls in love with Janani, a class topper and an all-rounder who excels in sports and extra-curricular activities. A loner by nature, he is smitten by Janani and in his quest to be closer to her, he even enrolls himself in the same college where she studies. But, sadly, Janani is neither able to recall his name nor remember them being classmates in school. And she rejects him when he expresses his love for her. Kootathil Oruthan captures the journey of Arvind, an ordinary middle-bencher, and his travails after being rejected by the love of his life.

Amuthan (Vaibhav) is a petty thief, who leads a carefree life. Kavitha (Aishwarya Rajesh), who works as a sales girl in a company often calls Amuthan to help needy children and even get him a job in her company. Just like any other film, here too Kavitha falls for Amuthan and their life goes happily until the latter steals the mobile of Sridevi (Oviya). What happens next ?