The film begins with the young man Sakthivel (Ranjith) coming back to his village. At his return, he is respected and treated as God by the villagers, they call him Thirukkaval. Thirukkaval still hates his father Chettiar (Jaishankar), stepmother Azhamu (Kavitha), stepbrother and stepsister. The kind-hearted Thirukkaval quickly makes enemies including Munnumunuthan (Vasu Vikram), Kodumudi (Kazan Khan) and his father Chettiar. Meanwhile, Pasupathy (Ravi Shankar) and Chinna Pulla (Rajakumari) fall in love with each other. The affair is soon exposed, so Thirukkaval arranges their wedding. Shortly after, Pasupathy dies in an accident and the villagers blame the innocent Thirukkaval.
In the past, Thirukkaval lived happily with his father Chettiar, his mother Shenbaga Valli and his baby sister Chittu. Chettiar had an affair with Shenbaga Valli’s sister Azhamu and Azhamu became pregnant. Unable to bear the situation, Shenbaga Valli killed her baby daughter and committed suicide. The angry Thirukkaval injured his father’s foot and run away. He then became a child labourer to make a living.
Chinna Pulla’s mother Appayi (Manorama) passes away. Thereafter, Thirukkaval is accused of having an affair with the widow Chinna Pulla. What transpires next forms the rest of the story.

Inba’s college going granddaughter Ashmitha is suffering from a serious health problem and she is in need of money costing to amount of about 6 lakhs. Inba along with her close friends Twinkle and Lilly cooperate together to raise money and while depositing money in the bank, they end up losing it due to bank robbery led by a terrorist (Mansoor Ali Khan) and his gang. The bank manager (Chithra Lakshmanan) refuses to help the trio as the money was not deposited at the time of the robbery. Then they find themselves in under tremendous pressure to raise money to rescue Ashmitha and the grannies hatch a plan to rob the bank where they lost their money along with China (Manobala). Then police and media covers the bank. After a lot of struggle they come out safely. Afterwards they get to know Ashmita has no disease but is stuck in a big problem. The problem is a gang which takes bad videos of women and asks money. But the video of ashmita is uploaded for not giving money. How they save Ashmita’s life forms the rest of the plot.