Section 4(3) in The Aadhaar (Authentication) Regulations, 2016
(3)A requesting entity may choose suitable mode(s) of authentication from the modes specified in sub-regulation (2) for a particular service or business function as per its requirement, including multiple factor authentication for enhancing security. For the avoidance of doubt, it is clarified that e-KYC authentication shall only be carried out using OTP and/ or biometric authentication.
