Khatarnak

Dasu's father, a counterfeit racketeer, is jailed, leaving Dasu an orphan. He drops out of school in the tenth grade and drifts through life as a vagabond. The loss of family sets him on a troubled path toward the underworld.

A smuggling gang operates drugs and arms, and an honest police officer hatches a plan to insert an informer named Venu into their fold. Venu stays with the smugglers for a while, passing information to the police. The operation helps bust the lower ranks but fails to capture the kingpin.

The don's right-hand lawyer proposes admitting one of their own as a police informant to feed information from inside the force. The agent should not appear on police records, but must be crooked and crafty. The plan sets the stage for a mole inside the police.

The smugglers' search narrows onto Dasu, and they threaten him, using him as a puppet in their schemes. They push him toward the police as a tool to advance their own interests. Dasu becomes a pawn in the underworld's games.

To embed him in the police, the criminals insist he completes his tenth-grade education. He is admitted to a local school to continue studying, framing education as his path to power. This marks a turning point in his life.

Dasu falls for Nakshatra, a schoolteacher. She initially dislikes him because of his appearance and lack of education. Their budding romance becomes a catalyst for his transformation.

The don's adviser tells Dasu to study hard and aim to join the police, so he can win Nakshatra's affection. He is urged to reverse his past and build a future through education. This push rekindles discipline and hope in him.

Dasu studies relentlessly and passes the tenth-grade exam. He then joins the police as a constable and is posted to traffic duty. This marks the transition from a vagabond to a sworn officer.

The smugglers' scheme shifts again, pushing Dasu into the crime police division. He struggles to balance his official duties with the underworld's pressure. The line between duty and danger becomes increasingly blurred.

Nakshatra begins to appreciate Dasu once she sees his genuine commitment to the job. Her feelings grow as she witnesses his dedication, even in tough assignments. Their relationship deepens despite the undercover pressures.

Venu, Nakshatra's brother, is killed by Dasu under the don's directive. Nakshatra chides him and begins to hate the person he has become. Dasu grapples with guilt as he realizes the heavy price of his undercover life.

Nakshatra chastises Dasu, and he grows disillusioned with his police career that started as a means to win her love. He begins to resent the violence and manipulation involved. The couple's relationship strains under the weight of the underworld's influence.

In a climactic confrontation, Dasu turns on the don and kills him. The criminal empire begins to crumble as Dasu asserts his own sense of justice. This act redefines his path and tests his love for Nakshatra.

The lawyer reveals to Nakshatra that her brother died due to the don's actions. She reconciles with Dasu as the truth comes to light. The film ends on a hopeful note with their reunion.