The time was when vehicles had to stand in long queues on the toll plaza to pay tax. But after the commencement of the AAP Fastag facility, the toll tax system has changed. All your vehicles have a fastag. As soon as the car reaches the toll tax, its toll is cut through Fastag.
Now all vehicles have a fastag. As soon as the car reaches the toll tax, its toll is cut through Fastag. The fast of car is not working. Or there is no recharge. Then you have to pay double paying by going to toll tax.
Your fastag is not working. And you want to avoid paying twice. So you have to adopt this trick. To avoid paying double tax of Fastag, you have to resort to prepaid touch and card service. The facility of this is being provided by the National Highways Authority of India. POS machines are installed on the toll plaza to buy this card. You can buy and use it from there.