'Prajapati' is the story of Sukhen who grows up neglected to become a rough person with a heart of gold. Shikha, Sukhen's beloved wants him to lead a normal and healthy life. His elder brothers are political leaders who work only for their personal gains. His eldest brother Keshav runs a drug business behind his medical business. His second brother Purnendu is a corrupt man who kills the young maid of their house. Sukhen attempts to stop the fatal rift growing between his brothers but is killed while doing so.