How it works? NHAI has enabled Fast tags on some of its toll booths across India. Fast tags has dedicated lanes at the toll booths. Once you buy a fast tag they will provide you a sticker which you will be sticking on your vehicle wind shield. You can recharge your fast tag account on the regular basis depending on your travel. It is like a prepaid card. Gates automatically opens when your car pass through the fast tag lane. Advantages: No need to carry cash. ​On-line recharge. No need to wait in the long queues. Saves fuel and time. Advantage during the holiday season. Dedicated Fast tag lane. You will receive a text message showing the amount deducted from your fast tag. Disadvantages: Not implemented across all the toll booths.