Purna Bahadur Ko Sarangi follows the story of a struggling father, Purna Bahadur, who earns a living by playing the *sarangi* in his village. After being abandoned by his wife due to their poor circumstances, Purna is left to raise his son alone. Despite the hardships, he is determined to provide his son with a better future through education. The film beautifully captures the deep bond between father and son, as they navigate a life of poverty, with music as their source of hope and resilience.