Step 1: Navigate to the settings icon in left-hand side panel
Step 2: Click on "UPI settings" from left-hand menu and click on "New UPI Account"
Step 3: Enter UPI id which needs to be added and click on "select business units to start using"
Step 4: Select PAN/GSTIN or branch for which UPI id is applicable and click on continue
Step 5: UPI id will be added