On a recent trip to India I observed that my (US) Google Wallet app appeared to have lost all its loaded (US-issued) credit and debit cards. Only non-payment passes and my airline boarding passes were available, no payment methods. Attempting to re-add a couple of my credit cards resulted in a non-specific error ("an error occurred, please try again later") and in consequence I wasn't able to use my phone for contactless credit card payments at all. Not a big loss, of course I had my credit cards along and was able to pay with them. But I've just got very used to using my phone for purchases where I can, at home.

When I left India all my credit and debit cards returned in the app exactly as they were before I had reached India.

On previous trips to India the Google Wallet app (or Google Pay as it was also available as in the US) worked for contactless payments in India, and all credit cards, etc., loaded into the app were fine inside or outside India.

This may have something to do with this news that Google Wallet will be launching in India, tweaked for Indian customers (while also keeping the separate India-specific Google Pay app)
https://techcrunch.com/2024/04/16/go...-india-launch/

It would be sad if when all of this settles out with the Wallet & Pay situation in India, foreign Android users are left without a way to use their phones for contactless payments. Not sure if Apple Pay works either.