The film revolves around the everyday life of people living in villages near rivers. The film shows how villagers get exploited by loan sharks, the struggles of farmers and more.
OC Alamgir rescued that baby who was found in a dustbin and restore him to a hospital. The baby without identity drew a huge attentation in social media. Thousands childless family applied to adopt the child. OC Alamgir is given the charge to investigate the selected couples. At the time of investigation OC Alamgir suffers from mental agony as his own child died met a very premature death. At that time there came the original mother of the nameless child. Why this child was thrown away? What would be the consequence of this child?
Religious prejudice and racial dogmatism are the curse of Mohanpur, a backwater village out of touch with progress in the contemporary world. But, as depicted in the film Brihonnola, humanity has the strength to combat and neutralist the poisonous effects of these evils on the lives of the villagers.
A teenage boy is hired along with the music group of his father by a Zamindar (landlord) for entertaining him until the annual flood is over in the Haor region of East Bengal. But the boy finds out that he has to do something more than the rest of the members of the group are required- he has to satisfy the landlord sensually as well. The wife of the landlord cannot stand this new 'rival' of hers and conspires to kill the boy.