In 1985, in rural
Thanjavur, a woman named Sivagami has
complications while giving birth. Sivagami's husband prays to his native deity that if she delivers his baby successfully, he will name the baby after the deity. The baby is born without any problems, and as per the wish, they name the baby Kunjithapadham. As a boy, Kunjithapadham faces many problems and embarrassments due to his name, as his peers call him "Kunju" or "Kunji" (the private part of the male body). He decides to change his name, but his mother falls severely ill, and he prays to God that he will never change his name. His mother recovers, and they move to
Chennai. Years later, Sivagami dies. Kunjithapadam's friend Peter advises him to change his name to have a change in his life. After meeting an astrologer, Gunasekara Raja, he legally renames himself "Harish." He also changes his residence and job. Luck starts to favour him from that day onwards. He falls in love with Geetha, a schoolteacher, and succeeds in winning her heart. He later gets a job, and life goes smoothly for him. One day, his lottery ticket hits victory, and he must cash it in for a television set as a prize. However, the lottery has registered his earlier name as "Kunjithapadham." He gets the television set using Peter, but Geetha finds out his true name and berates him for lying to her. She tells him that he needs to succeed at something in life to win her heart. Harish decides to participate in the coming
Chennai Marathon. He meets a trainer, J. Prakash, alias JP, who takes him to his former student Valli, who had quit athletics. She agrees to train Harish. Later, he sees her crying on the terrace with a photo of her deceased father. Harish asks her to tell her past. Valli was a naturally talented athlete from her young days. Her father supported her talent and spoke with many men to get her past many tournaments. She got into a state-level tournament where she beat the rookie of a corrupt coach, Raja Singh. Infuriated, Raja Singh accused Valli of failing a
gender verification test. The board punished Valli and stopped her from participating. Heartbroken, Valli's father died of a heart attack. JP then met with an accident. Hearing Valli's story, Harish is moved and decides to win the marathon. Geetha also urges him to win it for the sake of Valli. During the marathon, Harish faces stiff competition from one of Raja Singh's rookies, but he eventually wins the race and tells the media about Valli's innocence. Raja Singh is found guilty and arrested, and Valli resumes athletics. Harish later opens and runs a training academy under his original name, Kunjithapadham. A man named Dinakaran, acting on Harish's advice, proposes his love to Valli, and she accepts. == Cast ==