Krishna, Suriya, a disabled man, arrives in Mumbai from Kanyakumari to find his elder brother Raju. A taxi driver named Raja ferries him to a bar, where he tries to inquire about Raju from the henchmen of Raju's former associate Amar, but is rebuffed. Raju's friend Rajiv tells him that Raju was a top gangster. Krishna meets JK, a long-standing rival who reveals that Raju spared his life when he could have killed him. JK introduces Karim Bhai, a close friend of Raju. At Karim's, Krishna learns more about Raju's past and the circle of crime that shaped him.
In the past, Raju and his brotherly friend Chandru are powerful gangsters, and Karim Bhai stands as a personal friend at the center of their world. Their circle includes Johnny, Rajiv, Jackie, Manoj and Amar as trusted henchmen. A new police commissioner named R. Ashok Kumar tries to dismantle them, but Raju kidnapped the commissioner's daughter Jeeva on the night of her marriage, in exchange for freeing his men. The commissioner is forced to agree, but Jeeva explains that she did not want to get married and that her kidnapping is also her consent. Raju and Jeeva soon fall in love. Raju and Chandru eventually meet Imran Bhai, a powerful crime boss from Dubai, who initially praises them for their work, but eventually insults and warns them.
Chandru takes the insult seriously and stays awake all night, but becomes delighted upon finding that Raju kidnapped him at the party itself. The duo meets Imran, who is held captive by Rajiv, and have their verbal revenge. A delighted Chandru gifts a new car to Raju, who later finds Jeeva inside. Chandru tells Raju to enjoy the vacation with Jeeva. During their vacation, Raju and Jeeva are attacked, but they manage to escape. Returning to his hood, Raju is shattered and enraged to find Chandru's mutilated corpse, where he orders Amar to accompany him in killing Imran, but Raju is betrayed by Amar, who shoots him, throwing him into the water.
In the present, Krishna is told by Karim to stay hidden when Amar arrives at his taxi station, but is spotted and reveals that he killed Raju. Amar orders his henchmen to kill Krishna, but Krishna, who is revealed to be Raju, fights off everyone and shoots Amar dead. Raju tells Karim that he intends to stay as Krishna unless his mission to hunt down the traitors is accomplished, and stays at Karim's house. Karim says that Chandru was supposed to meet J.K on the day he died and Jackie did not tag along. Raju finds Jackie at a horse race stadium and chases after him, making him reveal that he tried to contact Raju (who was on vacation) and Chandru, but Chandru's call was answered by Johnny. Suspecting a mishap, Jackie escaped. Raju catches Johnny using the latter's girlfriend Sindhu and finds out what really happened to Chandru in that day.
On the day of the meeting between Chandru and J.K., Imran and his henchmen arrive instead of J.K. Chandru fights them off, but is held by Johnny, Amar and Manoj (who were bribed by Imran) where he is stabbed to death by Imran. Raju calls Chandru to ask about his safety, but was answered by Amar, who lied about Chandru being in a meeting. Learning the truth, Raju kills Johnny and proceeds to kill Manoj, along with his henchmen in an ensuing fight. Raju tries to kill Imran at his birthday party, but ends up shooting only his virtual projection telecast from Dubai. Raju and Karim learn that Imran's henchmen arrived at Karim's house and kidnapped his daughter Saira, but Karim reveals that Saira was actually Jeeva. Jeeva wanted to stay away as well as keep in touch with Raju by wearing a burqa. Raju goes to the spot and fights off all the henchmen and rescues Jeeva, only to be captured and brought to Imran by his henchmen, who then betray him by helping Raju kill Imran and fatally stabs Imran to death, avenging Chandru's death. Before leaving, Raju shoots the henchmen and says that even enemies must not have traitors. Before leaving Mumbai, Raju and Jeeva meet Raja, who is shocked to learn that Krishna was Raju all along.
The film also features brief cameos by Chitrangada Singh and Maryam Zakaria.
