Mouli

Based on the life of a popular Tamil scholar, the story touches upon the teachings and values of Seethakathi, who was known for his generous nature.

A reckless boy falls for a girl whose disapproving brother is a rich businessman.

When a stuntman Pammal Kalyana Sambandham alias P.K.S and a reputed surgeon Dr. Janaki come across each other at his younger brother Anand's and her best friend Malathi's elopement, they instantly develop a dislike for each other. They both have a very low opinion of the opposite gender, and also refuse to believe in the concept of marriage. Sambandham humorously often censors his middle name "Kalyana" as it means "marriage". Janaki, in particular, hates Sambandham for his uncouth manners and language. She gets Sambandam arrested when he argues with her at the police station over Anand and Malathi's marriage. Sambandham is eventually released on bail. Anand and Malathi's marriage soon turns rocky as Malathi feels that Anand had lied to her over a job assignment in Australia before they had eloped. On the advice's of Janaki, Malathi harasses Anand at every opportunity and makes him do the household work. On hearing about Anand's plight, Sambandham decides to fix the relationship by "hooking up" Anand with a woman named Vanaja in order to make Malathi jealous and a more caring and dutiful wife to Anand. But, unfortunately for Anand, Janaki makes Malathi to believe that Anand is cheating on her and forces her to file for divorce. Meanwhile, Janaki tries to get Sambandham into trouble by barging into a movie shoot involving Sambandham and claiming that he is "involved" in animal cruelty since he is using a bull and a snake as part of the movie. In the chaos which was accidentally created by Janaki as she accidentally throws the snake on to the bull's head, the bull goes mad, the snake gets killed and the bull gores Sambandham in his stomach when he was trying save Janaki from the bull as it was trying to attack her. Janaki performs an emergency surgery on him and saves his life, but during the surgery, her prized possession (a wristwatch gifted to her by her aunt) falls into his stomach, which is detected by the X-Ray. She pretends to become close with Sambandham, with the intention to somehow sedate him and perform the surgery again to retrieve the watch. Sambandham, who is unaware that Janaki's watch is in his stomach due to a mix-up with another patient's X-Ray, mistakes Janaki's romantic overtures to be genuine, and falls in love with her. He also inadvertently foils all her plans to sedate him. Eventually, Sambandham provides another shock to Janaki; they are to be engaged at his grandfather's house. During the engagement ceremony, Janaki finally manages to sedate Sambandham and retrieve her watch. Following the surgery, Janaki reveals the truth to Sambandham and ends their engagement, leaving Sambandham heartbroken. Sambandham's troubles increase when he realizes that his grandfather had signed a legal document transferring his lodge to him once he is married. When his grandfather finds out that Janaki canceled the engagement, he suffers a massive heart attack and dies. Meanwhile, Malathi and Anand manage to reconcile and get back together, canceling their divorce. Janaki feels guilty over being responsible for Sambandham's grandfather's death. She also finds out that Sambandham had decided to transfer the ownership of the lodge to her and convert it to an orphanage if they had got married, and on this revelation, she realizes that she has fallen in love with him. She decides to confess her love to Sambandham, but instead she inadvertently convinces him to marry his relative, a weightlifter Rajeshwari alias Raji, within the next two days, as he would lose the possession of the lodge if he doesn't marry by then. However, it turns out that Raji has no interest in the marriage and is in love with a Malayali boy. In a hilarious climax, Sambandham, Janaki, Anand and Malathi help Raji in eloping with her boyfriend, and Sambandham and Janaki too elope as well, thus ensuring that the lodge remains under Sambandham's ownership.

Selvam and Bhaskar, two thieves with good intentions, hide with the help of Radha who is an illegitimate child living with his father's family in the guise of a maid. Radha (Roja) lives in her father's house as a maidservant as she is his illegitimate daughter and he does not have the courage to tell his wife the truth. She had been in love with her step-mother's brother Sanjay (Ajith) but on discovering her feelings he tells her he needs time to think. One day two petty thieves, Selvam (Karthik) and his friend enter the house to hide while the elders are away and she places them under 'house arrest' for three days. On releasing them she gives them some advice that convinces them to reform. Due to a misunderstanding Radha is accused of theft and thrown out of the house. Selvam finds a place for her in a hostel and makes many sacrifices in order to make her a famous singer. Finally Radha's family accept her as their daughter and Sanjay is ready to marry her, but who will she choose? —Andrea

Two friends, both with the name of Lingam, create a comedy of errors and consequent chaos with their girlfriends and their families.

Sanjeevi, a smart young man, arrives to see his friend Venkatachalam, who is staying with his sister Indumathi, along with a beautiful maid Thilagam and a slow-witted but kind servant Kasi. Sumithra, who got rejected by a man years ago, has become an ardent feminist man-hater (except for her brother), which amuses Sanjeevi and gives him scope for banter and wit with her. The two fall in love with each other, though Indumathi vehemently denies it for most of the film. Venkatachalam becomes enamored of his maid Thilagam and seduces her. She becomes pregnant, but Venkatachalam refuses to marry her. Kasi, who is secretly in love with Thilagam, claims Sanjeevi is her baby's father, which means he is sentenced to marry Shobha. Sanjeevi is enraged at his position, but goes ahead after Kasi pleads with him to save Thilagam from social disgrace. Sanjeevi sends Thilagam to live with Kasi till her pregnancy is over. Kasi tenderly looks after her, and when his community starts to inquire about her presence in his home, he tells them she is his wife to protect her (back in 1978 unwed motherhood was considered a disgrace in India). Eventually Indumathi learns the truth about her brothers guilt and Sanjeevi's innocence, and flies into a rage and demands Venkatachalam marry Thilagam for the dignity of womanhood. Venkatachalam is finally persuaded to marry Thilagam, and comes to see her after her baby is born. However Thilagam rejects him, as all he did was get her pregnant and afterwards he never even came around to see her; Kasi on the other hand not only stayed with her but cared for her, and she considers him a more worthy choice as a husband and father. An enraged Venkatachalam fires them both, but Sanjeevi approves of Thilagam's choice and sets up a job for Kasi to support his now-wife and child. The film ends with Sanjeevi leaving town, picking up Indumathi on the outskirts after she asks him to take her along.