UPI for NRIs having NRE/NRO accounts

Hi,

I am new to this forum and new to UPI. I am an NRI (OCI holder ) having an NRO account with HDFC

The account is registered to my international number. I am currently visiting India and am using a temporary prepaid number

Is it possible to setup UPI on say Gpay or something similar so that I make transactions using NRO account ? Do I need access to my international number because I don’t have international roaming in case I need it for OTPs. Or will the temporary number be sufficient

I have also come across One World UPI. Is that the app that NRI with NRO bank accounts need to use or will something like Gpay be enough

Thanks

I think Phonepe has some option for NRIs… check it out… not exactly sure though