When you decide to purchase a bike or a car, the road tax is included in the last expense of the vehicle or its on-road cost. If you desire to drive your vehicle in a specific region or city, you need to pay road tax of that specific state.
In India, both the central and state governments put a road tax. The state government collects toll, passenger and goods taxes, and motor vehicle taxes annually or based on lifetime. This tax is different in each state. You should pay this tax to the state government if you have any desire to have a vehicle there.