National Highways Authority Of India [NHAI] — toll booth time consuming complaint

I want to know the actual timing at toll booths of nhai. I always spending minimum 20 min. To half an hour.. So i just want to verify that what is rule for compansation given to vehicle owner or commuter?. What is actual waitng time for vehicle to wait for its turn at toll booth? How the calculations done for the charges of vehicles to run at highways at all toll booth? Is it necessary to paid the said amount by toll plaza? How it may be checked?