Filmmaker Sanjay Gupta is looking forward to bringing the world of his gangster drama "Mumbai Saga" alive on screen, and says it is his most ambitious film."Mumbai Saga" is produced by Bhushan Kumar39s T-Series. Set in the 1980s-1990s period, it stars John Abraham, Emraan Hashmi, Jackie Shroff, Suniel Shetty, Prateik Babbar, Gulshan Grover, Rohit Roy, and Amole Gupte. The film will go on floors next month."After 25 years and 17 films, I had to give my audience something bigger and better. 39Mumbai Saga39 is by far my most ambitious film which needed a visionary producer," Gupta said in a statement."And I am grateful to Bhushan Kumar for putting his faith and might in it. It is one such story that needs to be said on screen," he added.On the film, Kumar said: "39Mumbai Saga39 is our first in the gangster drama genre and who better than Sanjay to direct it. The film is inspired by true events yet makes the characters so larger than life. The entire cast will bring so much to the table."Gupta on Friday also took to Twitter and presented the entire cast, calling them the "gangstas" of the movie. "The legend of Bombay, the saga of Mumbai! Presenting the Gangstas of 39Mumbai Saga39," he captioned the image which featured the cast.The film is likely to release in 2020.It is a Gulshan Kumar presentation, and is backed by T-Series and White Feather Films production. The film is produced by Bhushan Kumar, Krishan Kumar and Anuradha Gupta.