This mail is for your knowledge.....
Management of GTB hospital

You parking vendor behave rudely with the family’s of patient. Even the are taking benefits of patient problems.

On the slip of parking clearly mention 
Bike 10₹ for 12 hours
Car 20₹ for 12 hours

But if family member required any supplements or fruits from outside of hospital the took his bike or car  with in the 12 hours and return back.
They charged twice for 12hours. Which is totally illegal and miss written communication. With the customer or patient.

For your kind information i am sending this mail complaint copy in social media after 12 hrs if you are not taking action.

Even i am going to use my right through right to information and consumer court. Because they behave so roundly with me in parking which is the area of GTB hospital.