You can now make UPI payments on WhatsApp. Here's how you do it

Open WhatsApp, and go to 'Payments'

Click on 'Add payment method'

Select your bank

Verify your number registered with your bank by clicking on 'VERIFY VIA SMS'

After bank account is added, go back to 'Payments' and click on 'NEW PAYMENT'

Send money using UPI ID, scanning QR code or selecting your WhatsApp contact.