The idea is that offline retail stores can put QR Code on products which you can scan with the app and pay using Paytm Wallet.
Paytm adds QR code option to app - Times of India
Paytm adds QR code option to app - Times of India
Paytm has introduced a QR code-based payment option in its mobile application. This feature will enable any shopkeeper or an auto driver with a Paytm account to receive payments by allowing wallet-holders to scan a pre-printed QR code using the app. The company will shortly announce the names of restaurants that will be accepting payments through QR codes.