I paid 210 on top of the actual amount just because of bad service.
First of all driver knows only local language.
I called taxi at 2:00AM and driver came at 1:00AM and asked me to pay waiting charges(60Rs) and when I reached airport he asked me to pay authority charges 150 Rs.
I was already late to my flight so I end up paying 210rs to him.
Worst service provider.