Many service journeys still begin with a photocopy: proof of identity, proof of address, a signed form. Biometric and OTP-based authentication, and consent-based electronic KYC, can replace some of that paper for organisations that are permitted to use them. The technology is the easier half; the process design decides whether it is appropriate and trusted.
Aadhaar authentication submits an Aadhaar number together with demographic, biometric or one-time-password attributes for verification against UIDAI records, which return a match result. Aadhaar e-KYC is an electronic, consent-based alternative to paper KYC for organisations that are legally permitted to use it. Both are regulated, and eligibility is specific to the organisation and purpose.
- Consent. The person is told what is being verified and why, and agrees. Consent should be specific to the purpose, and recorded.
- Capture. A biometric is captured on an appropriate device, or an OTP is sent. Device quality and operator guidance determine how many genuine users are rejected.
- Authenticate. The request is made through the proper channel and a result is returned. Networks and upstream availability affect speed, so there must be a fallback.
- Record. Store only what the purpose needs, protect it, and keep an audit trail.
Any biometric system has false rejections: worn fingerprints, poor lighting, a device that needs cleaning. The experience of the person who does not match first time is a design problem, not an edge case. Provide alternatives (a second modality, an OTP, a human check), and make sure the fallback does not become a loophole.
Personal data protection law, including India's Digital Personal Data Protection Act, 2023, and sector rules place obligations on purpose, consent and retention. Storing biometric data unnecessarily creates risk with little benefit; in many designs the better choice is to store the outcome of the check and the audit trail, not the raw data. Digital identity guidance such as NIST SP 800-63 offers a useful vocabulary for identity proofing and authentication assurance levels.
The same building blocks appear in different settings: attendance systems for government offices, access control for facilities, payment acceptance using Aadhaar-based methods. The common requirements are device quality, a clear process for exceptions and a record that can be audited.
QDT works with Precision biometric devices, SDKs, integration, implementation and support as described in company materials. Authentication and e-KYC are regulated: we do not state that any solution is currently compliant without evidence for the specific deployment, and eligibility, consent and data protection must be assessed with qualified advisors.