Ashok (Rajasekhar) and Lakshmi (Meera Jasmine) are siblings, and their father Sarvarayudu (Rajasekhar), who was a landlord of the village, and mother (Sujitha) die during their childhood. Ashok and Lakshmi turn inseparable. Lakshmi falls in love with Aakash (Jai Akash) but makes it clear that she would love or marry him only with the blessings and acceptance of her brother, which he approves of. Ashok marries Nandini (Aarthi Agarwal) on the same day. After their marriage, Aakash and Lakshmi lead a happy life, along with Aakash's cousins and sisters-in-law. In a gap of seven years, Lakshmi has two daughters and a son. Nandini also becomes pregnant but suffers a miscarriage due to the intervention of one Kantham (Hema Choudhary), who stays with her claiming to be her aunt. As Nandini's uterus was removed, Ashok turns childless. To please him, Aakash and Lakshmi bring their children to cajole him. By the time Aakash returns to their house, his cousins cheat him and swindle the entire property. He gets jailed in a cheque bounce case. Lakshmi and her children then turn orphans. With the Kantham's advice, Nandini throws Lakshmi out of the house and warns her not to try to meet her brother. Lakshmi now has no way to save her husband and family. She and her children commit suicide. Upon learning this, Ashok also dies, proving that they are inseparable even in death.
The movie is about a school that faces troubles with the owner of the land and how the characters try and get help from the old students to prevent the school from being seized. Thus starts this nostalgic emotional ride. It’s about four classmates Vetrivel, Muthu, Kumaraswami and Kokila who had studied at that school and how the school changes their life forever.