The document provides a bounded case study of India's Aadhaar social welfare program. It summarizes that Aadhaar has enrolled over 750 million Indians in a unified biometric identification system, transforming social welfare delivery. Aadhaar issues a unique ID number linked to biometric data for each recipient. It enables digital verification of recipients and direct bank transfers of benefits to recipients' accounts. This ensures accurate benefit delivery while reducing fraud. The study analyzes strengths and limitations of Aadhaar through 50 scholarly sources to evaluate how it has converted traditional welfare systems into an efficient, accountable and transparent digital system through identification and payment technologies like Aadhaar Payments Bridge and Aadhaar Enabled Payment System.