Instant Messaging App Whatsapp has recently introduced payment options for Indian users. Actually, WhatsApp's new feature is WhatsApp Pay Digital Payment which is based on UPI. This feature is added to the new version of WhatsApp, whereby you can transfer money directly from your contact account to your account.
Although this is still in testing, you can use it. Now Whatsapp added a new option inside the payment feature. This new option is for QR code. Money can be sent by scanning the QR code from here.