FASTag is a technological improvement in toll collection system. It is a system based on RFID technology. RFID is radio frequency identification device. A tag with RFID technology known as FASTag tag is affixed on the windscreen of the vehicle. When the vehicle passes the toll the tag is detected and the amount is deducted from FASTag account. The FASTag account can be opened in any bank or through net banking or by mobile apps. The amount in the account gets deducted automatically and SMS will be received for the transaction. And if the account is of insufficient balance will also be notified. FASTag reduces the fuel consumption of the vehicle, reduces traffic congestion, reduces paper works and it also reduces air pollution. The essential objective of this study is to know the satisfaction level of people using FASTag with special reference to Coimbatore city.