No, you cannot cancel UPI payments once initiated as they are direct bank-to-bank transfers.
Related Question
What is UPI Global?
Which countries support UPI Global?
What are the fees for UPI Global transactions?
What are the Banks Live on UPI Global?
Will my UPI get deregistered if I deregister on UPI global?
How do I deregister from UPI international once I am back in India?
For what duration UPI international is enabled?
I have an issue with my International Payment. Need Help.
Are any charges applicable for UPI Global payments?
Can I cancel a UPI Global payment?
No, you cannot cancel UPI payments once initiated as they are direct bank-to-bank transfers.