Chhatrapati Shivaji International Airport — Pickup Charges

Address:

Mumbai City, Maharashtra

On 28th August I took OLA cab from Chhatrapati Shivaji Domestic Airport Terminal 1a. I was asked to pay ₹ 110 as pickup charges by airport authority. I just want to know why should I pay this charge, what am I getting worth ₹110? Getting inside cab took max 2 - 3 minutes time, and there was no parking involved as it was just a pickup. So please explain what did I get worth ₹110 for 3 min. And since it is a pickup lane no one would spend more than 5 minutes, why should anyone pay such charges. I haven't paid any pickup charges in other airports I had been to.