Inspiring and insightful, this biographical tale revolves around Budhia (Mayur Patole) whose destitute mother Sukanti (Tillotama Shome) has sold him to a hawker for Rs 850. The man, however, is an abusive drunk, and often spends the money he could use to provide Budhia with food on alcohol.
Biranchi Das (Manoj Bajpayee), who runs a Judo-training institute in Bhubaneswar, Odisha, that trains orphaned street children, admonishes one of his boys for swearing. That boy is the impish Budhia Singh who, without remorse, starts carrying out the punishment: running around the courtyard in circles until specifically told to stop. He returns in the evening and is dumbfounded to find that Budhia is still running, tirelessly.
Having discovered that Budhia, possesses special, unreal reserves of stamina; Budhia is whisked away by Biranchi, who begins training him to become the world's youngest marathon racer and later goes on to adopt him.