Director Rajat Kapoor feels the movie will prove to be a mass entertainer.
"This script has been with me for about three years and I have always felt that this might be the most commercial film that I have done so far," Kapoor said in a statement.
"Once in a while you get tickled by an idea that has the potential to be liked by a huge number of people. I believe, 'Fatso' has that potential," he added.
"Fatso" has already been part of several international festivals including the South Asian International Film Festival in New York, Indian Film Festival of Los Angeles and Shanghai International Film Festival.