Babu is a struggling tea vendor in
Chennai, who makes a living by selling milk tea, carrying the business on his bicycle. He falls in love with Uma, a rich college girl. Gradually, Uma also reciprocates Babu's feelings for his good nature, and things go smoothly for a while. Uma's parents find her a groom Bala, who is wealthy and well-educated. Uma is in a dilemma about whom to choose as her life partner. She thinks of her future if she chooses the impoverished Babu, where she visualises herself giving birth to a child in a government hospital, her husband unable to raise the required money for her medical expenses, and overall a complicated life; in contrast to a life where everyone pampers her, her every need is taken care of almost instantly if she chooses to marry Bala. While Babu is on a religious trip to
Sabarimala, Uma decides to marry Bala so that she can continue to lead a comfortable life. Babu is devastated when he learns of this and heartbroken when Uma goes to the extent of shouting at him. He accuses her parents of changing her mind. Babu attempts suicide during a
Valentine's Day gathering and is arrested. He is taken to the police station and beaten up by an inspector. Babu's best friend 'Kaduppu' Subramani pleads with the inspector, saying that he and Babu are orphans and there is no one to ask after them if they get killed. This changes the inspector's mind and makes him look at Babu's plight kindly, and he agrees to file a case against Uma. Babu files a case against Uma for not holding the promise made to him of sharing a life for a good 50 years. The case soon gathers momentum and has the public discussing it everywhere. As the case progresses, several sacrifices made by Babu for the sake of Uma come to light through revelations made by people known to him and by his close friends. Uma has a change of heart and, on the final day of the hearing, decides to reunite with Babu. When Uma offers an apology letter with a rose to Babu, he refuses to accept her, saying that the case was filed not to win her back, but to prevent others from suffering like him. He justifies by saying that yesterday she hated him because of his status, but today she loves him, and tomorrow she may again find him unattractive. Babu also says that as he cannot speak English, she left him. While leaving the court complex, much to the surprise of the visibly embarrassed Uma, he utters his last word to her in what little English he knows, "Goodbye". == Cast ==