I have been traveling by train for a total of 3 months now, day in and day out. Something very prominent, other than the crowd of course, is the number of life stories you can gather from just one train ride. There is a woman on the phone struggling to explain to her colleague where that important file is. There is another girl yelling at her friend for not meeting her and complaining that she got drenched in the rain waiting for them. Two friends reunite and get each other updated on their lives.
Also, if you tend to travel everyday by the same train (with the same people), I believe you can roughly follow with the story.
Call it eavesdropping or just pure attention to detail, but it makes my train journey just that much more exciting.
So now, where do you think our Bollywood writers get their inspiration from?