This idea has been merged into another idea. To comment or vote on this idea, please visit GIN-I-2500 PayTM Wallet - QR code based payment.
We need to know Ginesys POS have integrated with Paytm wallet, so kindly check and let us know
See the attached is the UPI Flow API doc for your reference
Please refer to the second option i.e.'UPI Payment Request'in the deck & not the dynamic QR Code flow