Summary: India’s push to internationalise UPI promises faster, cheaper, and more seamless cross-border payments, while also exposing deep regulatory and legal issues. This article explains why real-time payment speed is outpacing compliance frameworks across spanning foreign exchange rules, AML/KYC obligations, data localisation, and supervisory oversight and why resolving these tensions is critical for UPI’s global scalability. For regulators and financial institutions, it highlights what must evolve for cross-border digital payments to succeed.