Its a rainy night and Nizhalgal Ravis wife, who is in labor, is being driven to the hospital through the middle of a jungle. Ravi finds an abandoned temple and stops the car. Divine intervention happens and a snake emerges to ring the temples bells to usher in the villagers for help. Thus, with the help of the snake, Mumaith Khan is born with a birth mark of that of a snake. On the other side of the story, Nalini performs a yaga to obtain a precious stone that is supposedly born out of union between two cobras. Her gang manages to shoot one cobra and seize a stone but the other stone could not be captured since the second cobra escapes unhurt. She unleashes fury by using Mumaith as a medium and wreaks havoc in the lives of the evil men who are after the supposedly powerful stone.