Nadan is the story of a popular drama troupe owned by Devadas Sargavedi (Jayaram), which was previously possessed by his father and grandfather in the past, and speaks about the problems faced by the owner and his survival. The revival of this mighty art through the sustained effort of the talented theatre artists forms the crux of the narrative.

Govindan, a rich businessman, goes to any extent to make money. However, his life takes a turn when Gayathri enters his life to take revenge against him for ruining her father's life.

The series is based on a story of an innocent girl Simran who is forcefully married to a rich man Vikram for money.