Are you travelling with another car's FASTag in your car? Know the rules before you get into trouble.

Not only will you be fined, but your FASTag will also be blacklisted. This means that the next time at the toll plaza, neither your tag will be scanned, nor will the vehicle move forward, and on the contrary, a double charge may be levied.
If you are travelling on the highway with another car's FASTag in your car to save on toll, then be careful. Now this trickery can prove to be costly. The National Highway Authority of India (NHAI) and the Ministry of Road Transport (MoRTH) have made the rules regarding FASTag stricter. Now, only one FASTag will be valid for each vehicle, and if caught using a tag in another vehicle, not only will you be fined, but your FASTag will also be blacklisted. This means that the next time at the toll plaza, neither your tag will be scanned, nor will the vehicle move forward, and on the contrary, a double charge may be levied.
Only one Fastag will be valid in one car.
FASTag implemented for smooth and fast travel from toll plazas on national highways has come under strict surveillance. The government has made it clear that only one FASTag will be valid for one vehicle and it will be considered illegal to put it in another vehicle. If found doing so, that tag will be blacklisted immediately. That is, no payment will be accepted from that tag and you may have to pay double at the toll.
Account can be blacklisted for violating One Vehicle – One FASTag
While implementing the 'One Vehicle – One FASTag' rule last year, the government had said that many vehicle owners try to save toll by putting the same tag repeatedly in different vehicles. This not only disrupts the toll system, but this tag also affects the security and transparency of the system. From now on, any such tag will be immediately blacklisted by putting it in the category of "Loose tag".
So if you have two vehicles, it is necessary to get a separate FASTag for each one. It is mandatory for every FASTag to be linked to the vehicle number and the same information is recorded in the toll system. As soon as the QR code of the tag is scanned, the details of the vehicle are revealed. In such a situation, putting a tag on another vehicle will no longer be considered a fraud, but a direct violation of rules.