A 12-digit randomly generated number is going to upend business in India. Aadhaar, India’s unique ID project, is already the world’s largest ID system with over 1.12 billion members.

Aadhaar wins over the multitude of unique IDs that already existed because of its requirement to collect the biometrics of the enrolling members (photograph, fingerprints and iris scan), which it uses to ‘de-duplicate’ them against existing members.