Dibakar Singha (Jeet) is a police sub-inspector from Hridaypur, working in the city of Howrah. Arjun Sarkar (Supriyo Dutta) uses a job as a real estate agent to cover for crimes, including kidnapping and extortion, getting police. Dibakar learns of his crimes and decides to try and kill him.
Dibakar falls in love with Puja (Nusrat Jahan), a woman who is visiting her grandfather on vacation. She convinces Dibakar to fight the corruption in the police department and Arjun.
Dibakar is promoted to the head of an anti-kidnapping squad by the Home Minister. He conducts raids on Arjun's hideout and imprisons Arjun's brother Karna, who is innocent. To free his brother, Arjun plans to kidnap Puja's younger sister, Diya (Saayoni Ghosh), but Dibakar foils the attempt by catching two of the kidnappers. One of the kidnappers confesses that they were hired by Arjun, providing Dibakar with the necessary evidence to prove Arjun's involvement in 62 kidnappings. Dibakar announces that two kidnappers were apprehended and the money was recovered and will be used as a government asset unless someone lays claim to it.
Almost exposed for his involvement, Arjun plans to lure Dibakar to his hideout to kill him. Dibakar, however, learns of Arjun's plan to have him killed and decides to go meet Arjun in disguise. There he kills Ratan, a close friend of Arjun. Then, Dibakar tells Arjun that Ratan has agreed to be a state witness against him. To prevent this from happening, Arjun sends someone to kill Ratan in the hospital. When Karna, the assassin, arrives at the hospital, he is killed by Dibakar while on the phone with Arjun. Angered by this, tries to kill Puja, who escapes with a bullet in her arm.
Dibakar exposes his superior, the DSP (Biplab Chatterjee), as Arjun's mole in the police department. Having been exposed, the DSP is then forced into aiding Dibakar in exposing Arjun.
Arjun kidnaps the daughter of the Assam Home Minister and takes her to Jharkhand. Dibakar pursues him and kills Arjun.
At a ceremony to honour Dibakar for his actions, Dibakar announces that he will return to his village and that he has finished what he set out to do in the city. Puja is shown accompanying him on this journey.