Shankkar Aiyar speaks to The Statesman about his new book, Aadhaar: A Biometric History of India's 12 Digit Revolution.

The definitive story of unique identity project Aadhaar, from when it was a mere idea to a day when it has 1.5 billion enrollments.

Shankkar Aiyar’s book opens by offering a peep into the bureaucratic backrooms in the days and months that led up to the birth of Aadhaar in 2009.