Getting enrolled with UIDAI will enable organizations to provide E-KYC and Aadhaar based authentication. Becoming an AUA (Authentication User Agency) is required for any Institution which is looking to use Aadhaar authentication. It is also requisite step in registering as KYC User Agency (KUA) for using the Aadhaar eKYC service, the instantaneous pre-ratified Aadhaar based KYC solution.