Poththaari is a former kabaddi player. He has two wives. The family lives together happily. Even though one has many heirs with one of his wives and just one with the other, the properties should be split equally as per the law.

As a child, Paari (Atharvaa) lost his father who tried to stop the war between his native and neighboring village as they fought over sharing a pond water. Years later, Paari is a young man who returns from Singapore but the battle between two villages is still on. Mean while, Paari is in love with Thamarai (Anandhi), daughter of rich village man (Lal) who also owns the pond and is adamant not to supply water to the nearby village.

The story is set in the 1960s. Veluthambi alias Velu (Vimal) is a graduate aspiring for a government job. His father Annamalai (Bhagyaraj) advises him to work temporarily for a NGO that helps in educating rural children so that he will be given a priority for government job. Velu, although uninterested, joins the NGO and gets appointed as a teacher in a small dry village which lacks basic facilities. The entire village works for a rich landlord JP (Ponvannan), who owns a brick factory. Velu tries to convince the villagers to send their kids to learn, but in vain.
Madhiarasi alias Madhi (Iniya) owns a tea shop in the village and falls in love in Velu. Also the village kids play pranks on Velu, which irritates him. Velu understands that the villagers are exploited by JP, owing to their illiteracy by not paying them properly. Velu tries to make the villagers understand JP’s true colour, but they don’t believe him as they see JP as their savior.
Finally, the villagers understand that they are being cheated, and they demand proper payment for the bricks made by them. They also realize the value of education and send their kids to learn under Velu. Now Velu gets a government job but turns down the offer as he prefers to continue working for the NGO which gives him satisfaction. In a few days, he gets a letter from the NGO stating it is closing down due to financial difficulties. Velu worries as he is jobless and decides to work along with villagers in making bricks. But the villagers come for the rescue and want him to continue as a teacher for their kids, and in turn they agree to pay him. Velu also marries Madhi, and the movie ends with him feeling proud that the villagers understood the value of education.

As a child, Paari (Atharvaa) lost his father who tried to stop the war between his native and neighboring village as they fought over sharing a pond water. Years later, Paari is a young man who returns from Singapore but the battle between two villages is still on. Mean while, Paari is in love with Thamarai (Anandhi), daughter of rich village man (Lal) who also owns the pond and is adamant not to supply water to the nearby village.

This story begins with Chinna Vandu’s (Dhanush) brothers Paranjothi (Sriman) and Paranthavan (Sathyan), who are not yet married, despite their old age. Chinna Vandu, who studied in his uncle’s son home, falls in love with Vanaroja (Nazriya Nazim), who comes there to visit her grandmother (Sachu) and see the village festival. Chinna Vandu finds many ways to make Vanaroja fall in love, such as making her laugh, but she still does not fall in love with him. During the village festival, Vanaroja’s ring goes missing, so her father Poongavanam (Aadukalam Naren) comes there and tells everyone to find the ring for a reward of 1 lakh. Only Chinna Vandu finds it in front of Vanaroja, but he gives the ring to a poor lady to claim the prize, as Vanaroja does not like him. Seeing this, Vanaroja falls in love with him. Chinna Vandu makes a challenge to himself: to know whether Vanaroja’s in love or not. He gets to know that Vanaroja is also in love with him.
Vanaroja leaves the village to her home but upon reaching, she finds her father has arranged for her engagement with Krishna (Vamsi Krishna) and is getting married with Krishna on her birthday. Chinna Vandu comes to wish her for her birthday on that night and comes to know about the engagement. They both escape from Krishna and his henchmen. Chinna Vandu tells his cousin Soori (Soori) he has eloped with Vanaroja and asks him to come and meet them. Soori tries to find a way for Chinna Vandu to live with Vanaroja, but Chinna Vandu tells him he has already married her. Soori tells them to hide their marriage and go to his family in Kumbukonam. Soori brings Vanaroja to Chinna Vandu’s house, saying she is an orphan. His family accepts her in, but Chinna Vandu’s brothers start to love Vanaroja. Chinna Vandu comes there and makes sure his brothers do not marry her. After some days, their mother (Meera Krishnan) finds that Vanaroja is pregnant and throws her out of the house. Meanwhile, Krishna’s men find Vanaroja and kidnap her. Chinna Vandu finds Vanaroja captured by Krishna and follows him. He goes in a fight and wins, but Chinna Vandu is caught by his whole family, and his father Sambandham (Pyramid Natarajan) does not accept this, but Poongavanam comes and tells Sambandham that his daughter’s life needs to be happy, and so finally he accepts their relationship.

An irresponsible guy locks horns with one of his relatives in a election.

Vimalraj (the grubby Meenakshi Sundaram from Pasanga) is the ill-behaved son of the gullible Saranya and her husband Ilavarasu. Vimalraj’s financial needs are met by his susceptible mother, whom he either hoodwinks or intimidates to fulfill his frequent needs to gamble or hang out with his friends. He pushes the boat out and spends his time whiling away, aided by his friends. In the course of the time, he also spots a girl and falls in love with her – much to the despair of her brother who nurses a rivalry against him. What happens next forms the climax.