Actors Ranveer Singh and Alia Bhatt have shot in the slums of Mumbai for around 25 days for their upcoming film 'Gully Boy', as per reports. "All the combined sequences of Ranveer and Alia have been shot at the open area of slums in Mumbai," stated reports. Directed by Zoya Akhtar, the film also stars Kalki Koechlin and Ali Asgar.