There is a specific kind of quiet that only belongs to the Mumbai local train when it runs past midnight. The crowd is gone, the wind coming off the tracks is surprisingly cold, and if you look out the open door, the city looks like an abandoned film set. I was on the 12:12 slow line back from a chaotic brand shoot last November when Gehra Hua first dropped on my streaming feed. I put my headphones on, expecting the usual big, cinematic ballast we get from modern Hindi film a