Yes, and most travellers only discover this when the driver stops at a state border and asks for it.
When a tempo traveller travels from Delhi into another state Himachal Pradesh, Uttarakhand, Rajasthan, or any other a state entry permit tax is charged at the border. This is a government levy, not something the operator pockets. The amount varies state to state and also depends on your vehicle's seating capacity.
This is exactly why getting a written cost estimate before booking matters so much
