Avani Thingal movie tells the story of Shri Kumar is an orphan. No one is interested in giving their daughter in marriage to him. This frustrated youth takes up the high-risk job as a bomb-setter for drilling wells. By his hard work, he becomes a wealthy man.
But he loses his hand accidentally by the mischievous behaviour of Tejini, granddaughter of a local captain. Tejini regrets for her mistake and tries to find a suitable life partner for him.