The documentary "UPI: The Biggest Fintech Revolution in the World" highlights how India's Unified Payments Interface became a global leader, processing nearly 49% of real-time transactions by late 2025. Key features include UPI Lite for small transactions, UPI 123Pay for feature phones, and RuPay credit card integration. Watch the full video, featuring insights on this, at YouTube . UPI: revolutionising real-time digital payments in India