Dr. Pramod Varma is the former Chief Architect of Aadhaar, India's digital identity program that has successfully covered nearly 1.4 billion people. He was also the chief architect for various India Stack layers such as eSign, DigiLocker, and Unified Payment Interface (UPI), all of which are now working at population scale in India. He played an integral role in architecting India’s digital health infrastructure, vaccination and immunization infrastructure (Co-WIN & DIVOC).