Once Upon A Time In Mumbaai is a 2010 Indian period gangster film directed by Milan Luthria and produced by Ekta Kapoor. It stars Ajay Devgan, Emraan .\rbr\rbrOnce Upon A Time In Mumbaai is a 2010 Indian period gangster film directed by Milan Luthria and produced by Ekta Kapoor. It stars Ajay Devgan, Emraan .\rbr\rbronce upon a time in mumbaai - Emraan Hashmi (Dialogues). Edit byNayan Chaudhary. Owner of Tiger Production.\rbr\rbr\rbr\rbrOnce Upon A Time In Mumbaai is a 2010 Indian period gangster film directed by Milan Luthria and produced by Ekta Kapoor. It stars Ajay Devgan, Emraan .