I had a chance to spend a weekend each at Bangalore, Hyderabad, Chennai and Coimbatore in the past 2 months. I made this observation.
Hyderabad - At HYD, women have gone into "HYDing" [hiding]
Bangalore - Women don't want to hide!
Chennai - Some want to, some don't want to
Coimbatore - Women are hidden in private bungalows!!