Once Upon a Time in Mumbaai is 2010 bollywood Action Crime Gangster film. An ACP Wilson recounted an account of his life 18 years prior, when he was posted as the ACP in the Mumbai wrongdoing branch, his powerlessness to make the essential move prompted the ascent of Shoaib Khan a feared criminal, who assumed a focal part in the bombings. All through the film, Wilson portrays the tale of 1970s Bombay, when it was led by a kind hearted runner Sultan Mirza, and how Mirza's possible destruction prompted Shoaib's ascent to power.After being hit by a surge in the place where he grew up in Madras, a youthful Mirza touches base in Mumbai, where he handles a vocation as a coal shoveller. Disregarding his pitiful profit, the kid never neglects to encourage poor people and destitute, which soon picks up their regard and adoration. Mirza is given the moniker of "Sultan." As a developed man, Sultan Mirza turns into the boss of Mumbai's sneaking black market. Through his impact, Mirza gently separates the city among four hoodlums, in this manner ruining police endeavors to check unlawful exercises. Notwithstanding being a criminal, Sultan Mirza is depicted as a man of guideline with a kind nature and a back up parent like figure to the general population. He even avoids carrying stash, as it is against his Muslim confidence. Mirza really likes Bollywood performing artist Rehana and in the long run the two start dating. Sultan puts dark cash in her forthcoming movies. ACP Wilson moves to stop Rehana's movies supported by Sultan. Afterward, Sultan and Rehana outline Wilson to influence it to look as though Wilson is tolerating a pay off, which harms his believability. Then, Shoaib is even in youth an extremely aggressive individual with a dull and brave character. He is every now and again engaged with insignificant burglary. His dad, Hussain Khan, who is a sub-controller with the Bombay Police, tries futile to guide and control his child, his outrage against Shoaib started years prior when Shoaib and his closest companion Javed were taking cash and got caught in the act by a man, by showing his child a thing or two, Khan slaps him 5 times. Khan secures Shoaib imprison however Shoaib enrages him as both Shoaib and Wilson make an arrangement saying that Shoaib needs to take after another way. Stressed, the father swings to Sultan for help. Sultan concurs and enables the young fellow to set up a hardware shop. Be that as it may, Shoaib is unsatisfied, as his lone genuine desire is to end up rich and intense, similar to Sultan Mirza who is his godlike object. Shoaib's lovely sweetheart, Mumtaz, works in a nearby gem dealer, which Shoaib visits frequently, to the exacerbation of the young lady's manager. Shoaib gives her a delightful jewelry, which, unbeknownst to Mumtaz, Shoaib had stolen from a woman amid a home burglary. Afterward, that woman goes to the shop with her better half to purchase more adornments. The woman soon perceives her own accessory being worn by Mumtaz; she at that point admits to the insulted client that her beau had given the thing to her. The woman and her better half request she take them to her sweetheart's shop, where they defy him. This goads Shoaib, who whips the spouse and wrecks his own particular shop. Shoaib goes to Sultan and solicits to be a section from his wrongdoing ring. Seeing his potential, Sultan consents to encourage him. Shoaib takes in the subtle strategies and soon turns into Sultan's put stock in helper. ACP Wilson incubates an arrangement to utilize Shoaib's careless aspiration for fast cash and power as an approach to cause the defeat of Sultan. Wilson even shuns murdering Sultan and Shoaib when he has the opportunity. Wilson's arrangement reverse discharges, be that as it may. At long last, when Shoaib winds up strong, Wilson censures himself for the resulting calamity as he presently can't stop Shoaib's ascent to control. Sultan chooses to hand over his energy to Shoaib, and selects to enter state legislative issues. He goes to Delhi to meet the Home Minister of India. Shoaib's corrupt aspirations lead him to do exchanges and acts which Sultan himself would unequivocally censure and detests. Shoaib begins producing illegal alcohol, acknowledges contract killings, puts resources into tranquilize hawking and runs coercion rackets. At the point when Sultan comes back to Bombay, he learns of Shoaib's wrongdoings and is shocked. He discovers Shoaib at a gathering and slaps him out in the open for his dishonest exercises and states he can never truly resemble Sultan. This chafes Shoaib and he plots vindicate as he presently realizes that Sultan and he can't in any way, shape or form run Mumbai together because of Mirza's solid principals and good ethos. The following day, as Sultan battles for his new gathering, Shoaib shows up and kills Sultan Mirza while he is tending to the general population at the rally as a frightened Wilson looks on, accordingly finishing the rule of the runner who was cherished by his kin. In his portrayal, Wilson mourns that he and the police are in charge of the bombings in view of their absence of planning, Wilson likewise says that Shoaib currently controls Mumbai in spite of living abroad and the general population are presently everlastingly at his leniency – as Mumbai's new black market boss – he has since set up a worldwide carrying domain. No legislature or power can contact him now.