UIDAI Launches Aadhaar Face Authentication SDK and Sandbox

The correct answer is the Global Fintech Fest 2026, where the Unique Identification Authority of India released both the software development kit and the sandbox for Aadhaar face authentication. The venue matters because the audience was exactly the one the tools are meant for, the banking, financial services and insurance industry, which had long asked for a way to complete Aadhaar authentication inside its own apps. Option A, the India Mobile Congress, is a telecom event and is plausible because SIM activation through electronic know your customer is one of the services that uses face authentication. Option C, Digital India Week, is a government technology showcase and sounds right for any Aadhaar announcement, which is what makes it a good distractor. Option D, the World Economic Forum, is an international gathering and not the setting for this launch. Tie the launch to the fintech festival and to the ministry behind UIDAI, which is the Ministry of Electronics and Information Technology.

The correct answer is 2021, over 500 crore transactions. UIDAI engineered the face authentication solution in India and launched it in that year, and it has since been adopted by nearly 200 entities, among them central ministries and departments, state governments, banks, non-banking financial companies, telecom operators, brokerage firms and certifying authorities. Options A and B move the launch a year or two earlier and lower the transaction count, which is the commonest way this question is set, because candidates recall the scale but not the exact pairing. Option D borrows 2023, a year that does appear in this news but for a different reason: that is the year of the Prime Minister's Award for Excellence in Public Administration that the technology received in the innovation category. Keep the three numbers together while revising, namely the launch year, the transaction total and the number of adopting entities.

The correct answer is that it is a controlled environment to test the full face authentication journey before going live. Developers and quality assurance teams can run user provisioning and consent, face capture, liveness checks, authentication, error handling and response validation in it, and they can do so without external biometric hardware. They can also rehearse failures such as invalid digital signatures, network interruptions, timeouts and spoofing attempts. Option B confuses the sandbox with enrolment infrastructure, which is a different part of the Aadhaar system altogether. Option C borrows the idea of a regulatory sandbox, which the Reserve Bank does operate for financial innovation, and that overlap is exactly why the option tempts candidates; the UIDAI sandbox is a technical testing space, not a regulatory concession. Option D describes biometric capture hardware, whereas the entire point of this launch is that no such hardware is needed.