Electronic toll collection (ETC) aims to eliminate delays at toll roads by electronically collecting tolls from registered vehicles without needing to stop. FASTag is India's ETC system, using RFID technology to automatically deduct toll fees from linked accounts as vehicles pass through toll plazas. Automatic vehicle identification tags containing unique IDs are affixed to windshields and read by roadside antennas, with the information sent to central computers to identify accounts for fee deduction. ETC provides benefits like reduced travel times and emissions from less waiting, as well as incentives like toll discounts for users.