Mukta is the story of an upper caste girl and a lower caste boy who struggle against the contradictions of their caste, both in India as well as among a community of Indians who have settled abroad, in a supposedly liberated environment.

While at a felicitation ceremony, Feluda, a detective, meets Joychand, a simple man who owns a pink diamond. When several buyers set their eyes on the precious stone, Feluda must save the day.