Durgaprasad (Soumitra Chatterjee) an aged don wants to be a more successful don and would like to be in the league of Dawood Ibrahim who he considers to be his idol. To keep him company at all times he has two sidekicks in the form of Montu Singh and Jhantu Singh and Montu (Kanchan Mallick) of the very shrill voice and loves to play with toy guns. Durgarasad’s daughter Ranjita (Aparajita Ghosh Das) is in love with Aparatim (Subrata Dutta) a struggling actor. Ranjita has a couple of friends who are journalists and wants to do a story about the underworld and the underworld dons of the city. One of the friends asks Ranjita to help her write a story on Durgaprasad as he lives in Ranjita’s lane. Meanwhile Durgaprasad’s outgoing calls are barred and he sends Montu with 50,000 rupees, the outstanding amount to the shop to clear his bills so that he can again start receiving calls. Montu pays the amount, but misplaces Durgaprasad’s number by a single digit and so the entire number is credited to the amount account of Apratim. Durgaprasad is furious that his phone is still not working and likes Montu and goes to the shop to find out exactly what happened. He comes to know that his number is misplaced and the amount has been credited to Apratim though he is unaware of his real identity. His men threaten Apratim and tells him to repay the money or otherwise they will finish him. Ranjita tells her friends about her father’s real identity. Her friends decide to take the help of the rival don Muktadhara to face Durgaprasad. Durgaprasad decides to finish off Apratim the next day, but he has an unpleasant dream at night and he wakes up the next day at 10:10, the time at which he was supposed to bump off Apratim and turns a new leaf.