This book explores how India’s Unified Payments Interface (UPI) and instant payment systems, while revolutionizing digital transactions, have also become major targets for cybercrime. It examines fraud types such as phishing, SIM swap, QR code scams, and malware-based attacks, and provides forensic investigation methods to trace these crimes. Using real anonymized case studies from Nagpur, Pune, and Hyderabad, it highlights the unique challenges investigators face in India, such as volatile digital evidence, encryption, and legal hurdles. The book concludes with recommendations on strengthening forensic readiness, creating national forensic labs, real-time data sharing, and training investigators.