Indu Sarkar is the story of a simple young girl who becomes the voice of the Nation during the oppression Emergency of 1975. Indu (Kirti Kulhari) is an orphan who never got adopted because she stammers. She grows up and faces the same problem when finding a husband as well. However, Navin Sarkar (Tota Roy Chowdhury) gets attracted to her and she too develops feelings for him. Both get married. Meanwhile, the government declares National Emergency, suspending the rights of the citizens. Navin is a government officer who sees the Emergency as an opportunity to grow richer. Indu is oblivious to the horrors of Emergency at first but one day, she gets to see it first hand when she lands up at Delhi's Turkman Gate at a time when the police force is brutally demolishing structures and killing innocent, unarmed men and women. In the madness that ensues, a couple gets killed and is branded as Naxalites. Indu comes across their children and she takes them under her care. This enrages Navin and he tells her repeatedly to oust the kids from 'his' house. Indu however choses to walk out of not just Navin's house but also the marriage. She comes in contact with revolutionaries and decides to protest against the government and its policies. How Indu goes ahead and the obstacles she has to face forms the rest of the film.