1. Open the UPI app on your mobile device.
2. Tap the "Payment" or "Send Money" option.
3. Choose "UPI ID" as the payment method.
4. Enter the UPI ID: VYAPAR.167769900814@HDFCBANK.
5. Enter the amount you want to send.
6. Verify and confirm the transaction.
7. Once the transaction is successful, you'll receive a confirmation message.