Protima Devi (Devika Rani) is in love with Dr. Ajoy Kumar Ghosh (Ashok Kumar), whom she has already accepted as her husband even though they are not married. Ajoy is living in a village where he is the only doctor. Inspired by the death of a friend, Ajoy decides to devote his life serving his native village (a metaphor for
serving the country). Dedicated to the cause, Ajoy decides to renounce all worldly pleasures, including his love. Protima gets a rude shock when Ajoy writes to her urging her to forget him. Determined not to give up easily, she sets off to the village, where she discovers that Ajoy is out to improve the lives of the villagers. Ajoy attempts at enlightening the villagers against blind faith and achieving unity by breaking down
caste barriers brings him in direct conflict with the old order, represented by the hedonistic
zamindar, his assistant Sanatan (P. F. Pithawala), the village
priest, and the village
moneylender. Together, the four band together to discredit Ajoy in the eyes of the villagers. After several failed attempts, the wily Sanatan dreams up a diabolical conspiracy to get rid of the vacillating Zamindar and replace him with his drunkard, hedonistic nephew (Mumtaz Ali), who will prove more pliable. The zamindar is poisoned under circumstances that point to Dr. Ajoy's involvement, resulting in his imprisonment. The doctor's report establishes that the Zamindar died due to
arsenic poisoning. Further investigation reveals that Sanatan had purchased arsenic from a chemist shop in a nearby town. Suspicion automatically turns to Sanatan, who is apprehended. Under interrogation he confesses to his crime. Ajoy is released with his name and reputation intact, free to carry on with his reforming ways. ==Cast==