BT Explainer: Flipkart, Axis Bank and PayU’s biometric authentication — what it means for your card payments

India's card payment landscape is experiencing a transformative upgrade as Flipkart teams up with Axis Bank and PayU to introduce biometric authentication for transactions. This innovative approach allows users to validate payments using fingerprint scans or Face ID, moving away from the traditional OTP-based method. For consumers, this change signifies a transition from a system reliant on SMS and network connectivity to a more streamlined, device-based authentication process. This new method not only enhances speed and reliability but also minimizes the risk of fraud. At the point of checkout, users will notice a significant improvement. Rather than waiting for an OTP, they can now approve transactions instantly via their smartphones using biometric data. This eliminates frequent issues such as delays in receiving OTPs, failed deliveries, or erroneous entries. Currently, this feature is available exclusively to Axis Bank cardholders on the Flipkart platform, where the authentication process is secured through a device-bound mechanism. In the future, this could pave the way for wider adoption across various banks and merchants. The significance of this development cannot be overstated. OTP-based authentication has long been the cornerstone of digital payments in India; however, it is not without its challenges and vulnerabilities. Issues like SIM-swap attacks and phishing exploits have revealed major security risks inherent in SMS-based systems. By utilizing biometric data, the new method ties transactions more closely to the user's physical identity and their registered device, thereby providing a dual-layer of security that greatly diminishes the likelihood of unauthorized access. This initiative also aligns with the Reserve Bank of India's (RBI) efforts to implement stronger, risk-based authentication measures, particularly important as digital fraud has escalated to over ₹1,400 crore in FY2024. In terms of transaction efficiency, the biometric approach promises substantial benefits. Failures related to OTPs—especially during peak sale events—often result in abandoned transactions. With biometric authentication, approval is instantaneous, eliminating dependence on telecom networks and significantly improving success rates, particularly for urgent transactions. This advancement could greatly enhance the checkout experience on large e-commerce platforms. The backend of this innovative system is a well-coordinated effort: Flipkart enhances the user-facing payment experience, PayU provides the merchant-side infrastructure and security, and Axis Bank, through Wibmo, manages issuer-level biometric authentication. This collaborative framework ensures compliance with stringent banking security standards while maintaining a user-friendly process. Looking ahead, the introduction of biometric authentication has the potential to make card payments more competitive against UPI, which has gained popularity due to its ease and speed. By minimizing friction and bolstering security, card transactions could become more appealing for routine digital purchases. For users, this shift is not only straightforward but also impactful: expect fewer payment failures, quicker checkouts, and enhanced protection against fraud. As biometric authentication gains traction, it could fundamentally change how card payments are authorized in India, moving away from OTP dependency towards a more secure, device-led verification system.