Bhutan: The first country to fully implement UPI for cross-border payments with India.
Singapore: UPI has been linked with the PayNow system, allowing for bilateral payments and money transfers.
Qatar: Has signed a cooperation agreement and accepts UPI for payments at some locations, especially serving the Indian community (in the process of practical implementation-Snow Rider 2).
Other options contain countries that have not yet implemented or are only in the discussion phase, so they are not suitable in the context of Current Affairs for Prelims.
