One of the unique challenges in executing the UID project is its scale. Due to the size of India's population, the UIDAI is undertaking what is perhaps the largest governance-related exercise in the world. We must ensure that all aspects of the project – enrolment, de-duplication, and authentication – function effectively even as the number of records approaches a billion.
Addressing challenges of scale
The UIDAI can expect its enrolment run-rate to have a peak load of one million enrolments per day in the very first year of operation. Every sub-system and component of the UID system will need to scale quickly and significantly. This will include:
- The ability to onboard Registrars from different sectors and handle their constituencies of residents.
- The legal framework of contracts needs to support the variety and spread of stakeholders as their numbers grow exponentially across the country.
- The biometric de-duplication algorithm needs to scale towards checking a fingerprint against everyone of 1.2 billion people to ensure uniqueness.
- The authenticating service, which may be used by tens of thousands of points across the country, needs to scale to handle hundreds of thousands of transactions per second.
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