AVM Productions is an Indian film production studio. It is the oldest surviving studio in India. The filming studios are located in Vadapalani, Chennai. It has produced over 170 films in Tamil, Telugu, Kannada, Malayalam and Bollywood cinema. AVM has introduced numerous actors in the Tamil and Telugu film industries, some of the prominent actors are Vyjayanthimala, Sivaji Ganesan, S. S. Rajendran and Kamal Haasan. The AVM Studios besides the shooting floors, has recording, dubbing and a preview theatre with state of the art equipment. The complex also houses facilities for production and post production processing.
Mohini is the daughter of Sivashankaralingeswara Prasad, who marries Durgamma following Mohini's mother's death. Durgamma's brother Murthy wants to marry Mohini. Meanwhile, Mohini falls in love with Ashok, who is none other than her neighbour Pati, but she is not aware of that. When Murthy asks Prasad for Mohini's hand in marriage, he is refused by Mohini. An angry Murthy goes to the village and spends some time with Lakshmi and leaves her. When Lakshmi becomes pregnant, she comes to the city in search of Murthy. Before she can find Murthy, she gives birth to a boy in the hospital. She meets Murthy and requests him to accept her and the child. But Murthy refuses so she leaves the child in Pati's car, and goes to the sea to commit suicide. In the meantime, Murthy plans to cancel Mohini's marriage to Pati by using the child. Due to his claim that the child is Pati's and Lakshmi's, the marriage is cancelled. The rest of the story is about how Pati faces problems from Murthy, and how he reunites with Mohini.
Murthi (S. V. Sahasranamam) comes to a village. He deceives Meenakshi (M. S. Draupadi) and has sex with her. After going back to his home town he tries to marry Mohana (Vyjayanthimala), who loves Nathan (T. R, Ramachandran). Lakshmi discovers she is pregnant and goes to meet Murthi, who pretends ignorance. She jumps into the sea in a suicide attempt. A passerby saves her and she delivers the baby. She leaves the baby with Nathan. He takes care of the baby and faces a lot of problems. Learning about the baby, Mohana gets suspicious. Finally the actions of Murthi are exposed and he accepts Meenakshi as his wife.