Pratikar (1944)

Sri Beniprasad, owner of "Model Drugs," discovers his workers’ grievances when he finds a bulletin circulated by them. Though his son Dilip is involved with the company, he advises his father to investigate independently. Taking on a disguise as a common laborer, Beni Prasad learns that his executives are dishonest and oppressive, even mistreating him. He is welcomed by Rammoy, a worker, and his family, where Jayanta, an enigmatic leader of the labor movement, regularly appears. During a secret meeting, Jayanta realizes Beni Prasad is undercover and orders his glasses broken, rendering him unable to see. Both Beni Prasad and Rammoy's daughter Reba question Jayanta’s true identity, which is revealed in a twist at the film's end.