In which of the following countries did India launch its UPI in 2024?

Concept: India's Unified Payments Interface (UPI) — its instant, real-time domestic payment rail — has been progressively extended abroad through bilateral tie-ups arranged by NPCI International Payments Limited (NIPL), enabling UPI-based QR/P2P payments in partner countries; in some of these tie-ups, NIPL has separately extended RuPay card acceptance alongside UPI as a distinct component, not a capability of UPI itself. Current-affairs questions on this topic turn on matching the correct country to the correct year of its launch.

Application: On 12 February 2024, India and Mauritius jointly went live with UPI real-time payments; NIPL separately extended RuPay card acceptance in Mauritius as part of the same launch event. India also launched UPI services in Sri Lanka the same day. Among the single-country options offered here — Thailand, Myanmar, and Mauritius — only Mauritius had a UPI launch event in 2024; there is no 2024 UPI go-live tied to Thailand or Myanmar.

Cross-check: Checking the remaining options against the same evidence:

• Thailand: no 2024 UPI launch event.

• Myanmar: no 2024 UPI launch event.

• More than one of the above: fails, since only one of the offered single-country options (Mauritius) actually launched UPI in 2024 — there is no second offered country to pair it with.

• None of the above: fails, since Mauritius genuinely is a correct 2024 launch country.

Hence, Mauritius — confirmed both by the official BPSC answer key and by government press releases of the 12 February 2024 launch — is the correct answer.