Professor Krishnanand is giving a social message against dowry. He heads the department of sociology in his college. He lives with his mother and his only daughter Pooja.
Radha, a professor of law admires Krishnanand in his crusade against dowry. Radha was engaged to Ranveer; but on the day of their marriage, when Ranveer's father demands dowry meanwhile Radha cancels the marriage. Radha's father commits suicide thereafter. Radha then establishes a support society for female dowry victims with moral support from Krishnanand.
Pooja's marriage is arranged with Mohan but Mohan's mother is unhappy as there is no dowry. Mohan and his evil brother-in-law make various plans and force Pooja to ask for money from her father. However, on the day of Karwa Chauth Pooja finds out that her husband and his family are plotting to kill Krishnanand for his property. In order to save himself Mohan kills Pooja with the help of his family. News is planted that Pooja's death was an accident.
Krishnanand makes an unsuccessful attempt to seek justice for his daughter; Mohan is released due to lack of evidence. A heartbroken Krishnanand decides to take revenge. On Diwali night he records the confession of Mohan and his family and kills Mohan and Roshan Lal.
In the courtroom Krishnanand stops Judge Ranveer from passing judgement and declares that he killed Mohan and Roshan Lal to avenge his daughter's death and reveals that the investigating officer was bribed. The judge reopens Pooja's murder case and the culprits are sent to judicial custody. The judge also accepts that the law needs to be improved in order protect the daughters from being dowry victims. In the climax, Krishnanand is arrested and people are shown to be supporting him.