a lot of retail stores are now accepting payments through digital wallets. i assume you scan a qr code with the phone's app to pay. not sure how that would work out at a petrol pump. Paytm might be giving them a device to generate the qr code on demand.
Yup. Same thing happens at McDonalds. You just say Im paying thru freecharge and they ask for phone number. You give them and get OTP. Enter that & your done.
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