Aadhaar eKYC service is a fast, secure and convenient way to capture KYC information of customers and it is available for NBFCs and BFSI companies in India. To use this service, service providers need to register with UIDAI as KUA (KYC User Agency) or Sub KUA (Sub KYC User Agency).
KUA is a direct license holder from UIDAI and can access the eKYC service directly. Sub KUA is an entity that has an agreement with a KUA to access the eKYC service through them. Sub KUA pays a fee to the KUA for using the service.