Zamindar Raja Jaganatha Rao is affluent and obsessed with discipline. He doesn't show any preference between family members and workers; if anyone dares to break the rules, he punishes them harshly. So, his wife Roopa Devi and elder son Raghu oblige accordingly, whereas the younger son Chinnababu finds these rules too annoying. Jaganatha Rao learns about Chinababu's ideas, and warns him twice, but he does not listen, so, furious Jaganatha Rao seeks to punish him, and Chinababu dies out of shock. As a result, Raghu gets upset and wants to leave his father and house. Then Jaganatha Rao allots him a huge amount and asks him to live a rich lifestyle and understand life.
But unfortunately, Raghu goes into the clutches of a malevolent person Naagu who turns him into a spoilt brat. After some time, Raghu tries to trap a beautiful girl Mala but looking at her virtue, he reforms himself and gets rid of Naagu. Parallelly, at the palace, Jaganatha Rao breaks down mentally when his past haunts him. Getting to know of his father's condition, Raghu returns. Before his death, Jaganatha Rao shares his past sin that he had once deceived a poor girl Raaji. They two had a child Rani who is presently living as a street dancer. Here Jaganatha Rao expresses his wish to make her an equal heir without officially acknowledging her, in order to protect the family's honour. Raghu somehow convinces Rani and brings her home, much to the disapproval of his mother, Roopa Devi.
At one point, Rani finds out the truth and wants to acquire her identity. Then onwards, she starts teasing everyone in the house when distressed. Roopa Devi orders to expel Rani which Raghu cannot do so. He, too, sides with Rani, and when Mala suddenly lands up, she starts to suspect their relationship. Later she realizes Raghu's righteousness.
Nevertheless, Rani does not leave her challenge, making Raghu suffer a lot. Ultimately, she picks up Naagu, and plays a drama by introducing him as her fiancé, but Raghu does not yield. On the other side, wicked Naagu ploys to double-cross, which are fezzed by Rani when angered Naagu reveals the birth secret of Rani. At last, Roopa Devi realizes her mistake and accepts Rani as her daughter. Raghu marries Mala.
