FASTag is a prepaid rechargeable tag that is attached to the windshield of a vehicle. It allows for automatic electronic toll collection while passing through toll plazas on national highways. The tagFASTag is a prepaid rechargeable tag that is attached to the windshield of a vehicle. It allows for automatic electronic toll collection while passing through toll plazas on national highways. The tag is linked to a bank account or e-wallet, which is debited every time the vehicle passes through a toll plaza. FASTag helps to save time and avoid long queues at toll plazas, as there is no need to stop and pay the toll. It also helps to reduce fuel consumption and emissions, as there is no need to stop and start the vehicle. FASTag is mandatory for all vehicles in India, and can be purchased at toll plazas, banks, and online portals. is linked to a bank account or e-wallet, which is debited every time the vehicle passes through a toll plaza. FASTag helps to save time and avoid long queues at toll plazas, as there is no need to stop and pay the toll. It also helps to reduce fuel consumption and emissions, as there is no need to stop and start the vehicle. FASTag is mandatory for all vehicles in India, and can be purchased at toll plazas, banks, and online portals. ... more