.New Delhi, Delhi, India
FASTag has become mandatory for all four-wheelers in India from Monday. (Photo Credit: PTI)

  • FASTag is a sticker or a tag that is usually pasted on the windscreen of a car
  • FASTag uses RFID technology, which communicates with a scanner installed at toll plazas
  • Once a vehicle has a FASTag installed, it can drive through the toll plaza without stopping