I have also travelled a lot in North India especially in metros that were swarming with college girls and bhabhis .. but they usually prefer to stay in women reserved coach. The very less amount of women who happen to get into the non reserved Coaches, usually happen to be with their boyfriends or male friends usually.
I have also noticed one guy, always sitting alone in a corner, with his bag in his lap, day-dreaming x-forum stories of how he's groping 70% of woman population of North India!
Or probably its your perfume ! Whenever you get into a metro train, all women rush towards you, the Pink Coaches empty instantaneously, and the whole metro train starts resonating with moaning sounds of 70% female population .. orgasming to your name, whilst you grope the shit out of them !
Very Interesting!