Rajan Singh was a notorious mafia don ruling Mumbai underworld business empire which was involved in robberies, extortion of money and murders and had the city's police and ruling party in their pocket . Rajan singh orders his trusted lieutenant John Smith to kidnap industrialist Dharam Dass only child in Ransom business. john succeeds in kidnapping the child but fails delivering Rajan meets with bad luck loses one leg and child.
Social worker Acharya comes to get hold on abandoned child and gives it to neighbor childless widow Radha. Time passes child Ravi turns into a man by profession turns into a small time thief. On the other side Achariya runs an orphanage, ther one small child Raju of Ravi's age group turns into a rebel, thrown out by management in the absence of Achariya.
He comes to Bombay and meets Asha ,they fall in Love her father arranges a job for Raju in laundry. One night Ravi saw a passer by stealing cars part. Runs for his safety but caught by Raju and inspector to know that Ravi is not merely a common thief but he is modern Robin-Hood for which reason inspector Shiva likes Ravi,pardons him and advise him to leave the dirty job.
Ravi's girlfriend backs Shiva's and compels him to robs Ranima treasure for the last time. There in the palace while robbing the treasure Ravi encounters Ranima who was in grief and heartbroken, longing and looking for her lost child as that day was the birth day of the child. Ravi sharing her sorrow promises her that he will bring back her lost child,leaves empty handed,filled with sympathy for her.
In searching the lost child Ravi gets the surprise of his lifetime that lost child is no one but else Ravi himself. But fate seems to thw opposite side of Ravi and Inspector Wadekar reveals to Ranima that Ravi is a common thief and criminal. Just not to disappointment and hurt his mother he present his friend Raju as her lost child. Mobster Rajan waiting for this to happen, he make friendship and deal with Raju and starts attacking on Ravi's life.