Dorasani explores the periodic tale of love between a rich lady Devaki and a poor boy Raju.
Shankaranna who was a Naxal is being released from jail after 30 years of false imprisonment. He goes to a village and inquires about Raju. However, no one seems to know him. Shankar explores around his now changed village. Then a man meets him claiming to know Raju. He introduces himself as Siddadu, the ex-henchman of the Dora Raja Reddy and also recognizes Shankaranna. Raju is the son of a painter and also from a lower caste in rural Telangana. Devaki is the daughter of the Dora Raja Reddy. Imprisoned in her own bungalow, Devaki wishes to be free and openly interact with the people in the village. Since she is motherless, her father and the domestic maid Dasi take utmost care of her. Raju sees Devaki in a festival and falls in love with her. He starts seeing her through her window from outside the bungalow. Raju eventually takes a disguised Devaki and explores the village while being careful as to not alerting her father and his henchmen.
Devaki is spellbound by his honest and innocent nature. Raja Reddy's henchmen notice and follow them. When Raju drops off Devaki at the bungalow the henchman beat him up with a warning of leaving the village but do not tell Raja Reddy. When Raju is about to leave the village as per his father's orders he gets stuck in the village due to the 48-hour curfew arranged by Shankar and his Naxals. Raja Reddy eventually learns about Devaki and Raju's relationship. He makes Devaki leave for his elder son's house under a false pretense. He also makes sure that Raju is arrested. Upon learning this through a villager Devaki escapes from her brother's house. In the meantime Raju meets Shankar in prison. Raja Reddy frames Raju as a Naxal and is planned to be executed by the police. Shankar helps Raju escape from jail.
Upon reaching Devaki they both decide on eloping from the village. They then head to Devaki's brother who surprisingly accepts their relationship. He also promises them of driving them to Hyderabad. The next day, Devaki's brother drives them to the local police station first to lodge a complaint on their behalf. However, he decides against it stating that the proceedings will take a long time. He drives the car and stops it in the middle of nowhere. He shoots both Raju and Devaki to death and burns the car with them inside. At present, Shankar is devastated upon hearing about what happened to Raju and Devaki. Siddadu tells Shankar that Raju won at the moment Devaki fell for him, and when they both sacrificed each other, for their love.
