You can now link your over-draft account to UPI which was not available until now.
With this feature you can pre-authorise (Mandate) a transaction, for debit from your bank account later. UPI mandate is to be used in scenarios where money is to be transferred later, however the commitment towards that is to be done now. It is possible that the sender may forget to send money later so creates a mandate or for a service/merchant payment wherein this functionality may be required. The customer's account shall get debited when the mandate is executed. UPI mandate can be executed one time only.
So far when a collect request was sent you could only verify the amount being paid and make the payment post entering the UPI PIN. Now prior to making the payment you will be able to check the invoice being paid via a link and thereby verify the details of the transaction before you pay for the same. This functionality is only available for the invoices of verified merchants.
With this option, while making payment using the intent or through scanning QR, the user will get additional security in the form of signed QR / intent. With the signed QR , issues related to tampering QR as well as having non-verified entities shall be reduced.