This document summarizes information about the Unique Identification Authority of India (UIDAI) and Aadhaar, India's national identity system. It discusses the goals of UIDAI, which include supporting national programs, technology, security, and protecting individual rights. It also outlines the application architecture, security architecture, and features of the UIDAI model, which takes a pro-poor, partnership approach and aims to balance privacy and purpose while accounting for marginalized groups. The document predicts that Aadhaar will be a game changer for business in India as technology advances and more people use the national ID system.