This action-oriented crime thriller opens with the police force's pursuit of Shobaraj (Mohanlal), the leader of an underworld gang who in spite of being one of the most wanted on the list of Interpol, remains elusive to the police.
Along with the police, He makes a few other enemies through his merciless approach to running his organization, especially when he kills one of his own men, Babu, when the latter decides to leave the business. This introduces Shobaraj to two new enemies, Julie, Babu's fiancee, and Nisha, Babu's sister. When Julie seduces Sobharaj and attempts to have the police arrest him, her plan backfires as Shobaraj outsmarts her and the police in his escape, and in the process, Julie is killed.
A shattered, revenge-seeking Nisha gets trained in judo and karate, then enters Shobaraj's gang after deceiving them into thinking that she too is on the wrong side of the law. Shobaraj is impressed with her fighting skills and allows her to work for him, without realizing her true intentions.
Meanwhile, after a couple of unsuccessful attempts at nabbing Shobaraj but unbeknownst to her, the Deputy Superintendent of Police Mohandas (K.P Ummer) is tracking down Shobaraj and in one of their confrontations the DSP wounds Shobaraj, resulting in his death. After which the DSP remembers a person 'Dharmaraj' (Mohanlal) who looks like Shobaraj, Who's really is Shobaraj's blood brother, who were separated when they were small.
The DSP then tracks that person down.He requests Raj to impersonates Shobaraj so that the DSP can take down the rest of Shobaraj's gang, Raj requests that the DSP promises him that he will give a proper education to the children Salim and Suhra that he is looking after. The DSP then secretly holds a burying of Shobaraj.
Around the time Dharmaraj "returns" to Shobaraj's gang as Shobaraj under the guise of amnesia, Raheem T. G. Ravi, just released from jail, begins his mission of revenge against DSP Mohandas and his search for his children Salim and Suhra, who had been saved and taken care of by Dharmaraj. Raheem has a past starting from his childhood playing with Shobharaj and Dharmaraj.
One day, the three went to fishing and when a fight occurred between Shobharaj and Dharmaraj, Dharmaraj falls into the river. Worried about the death of his brother, Shobharaj and Raheem flee and they later became criminals . After marriage, Raheem decided to change his life , but Shobharaj didn't like Raheem quitting and he felt angry .
After some years , Shobharaj's Gang members visit him in seeking help Shobharaj run from jail in return of money . Attempt is succeeded and Shobharaj gives the money but Raheem learns from his children that his wife has eaten poison and is in the Hospital . Raheem runs to the hospital with the money but DSP Mohandas arrests him for helping Shobharaj escape prison . In a struggle, Raheem's leg was shot.
Dharmaraj learns more about Shobharaj's gang and makes a plan with the DSP to prove the memory could be regained. The gang now believes that Shobharaj's memory is regained. There is a diary which Shobharaj listed the names and addresses of men belonging to the gang. Dharmaraj carefully takes the diary with anyone noticing and tells his gang that he is going to take revenge on the DSP, but is actually going there to give him the red diary.
Roma goes after him, but Dharmaraj survives the attack and he tries to explain to her that he is not Shobharaj. She refuses to believe him at first but DSP Mohandas intervenes and tells her that the man she is trying to kill is indeed Dharmaraj. He tells DSP that there is going to be a meet with all the men belonging to the gang internationally. Incidents occur when Raheem comes to DSP's house and in a talk, knows that Salim and Suhra are taken care by the DSP and DSP promises Raheem to return .
Celebrations ensue as Shobharaj announces his return to the world, but things take a drastic turn when the police raid the celebrations, acting upon Dharmaraj's information, but Dharmaraj's only witness to his true identity, Mohandas, dies in the crossfire.
Tangled in a web of confusion where the police refuse to believe that he is Dharmaraj while his underworld gang realize that he is indeed not Shobharaj, Dharmaraj incites the ire of both the police and Shobharaj's right-hand man, Shekhar. To add to Dharmaraj's woes, the diary that Dharmaraj had handed over to DSP Mohandas – his last hope of proving his innocence – is stolen by Raheem in an attempt to track down his lost children, without realizing that Dharmaraj is the one man who can reunite them. Dharmaraj escapes the clutches of the police and the underworld with Nisha's help and returns to his old self though he struggles to prove his identity and innocence.first