The official BLS E-Services preparation program for UIDAI's Authentication Operator Service (AOS) certification — designed for Aadhaar authentication operators, BCs, and CSPs.
The Authentication Operator Service (AOS) certification is issued by UIDAI (Unique Identification Authority of India) to operators who perform Aadhaar-based authentication services on behalf of Authentication User Agencies (AUAs).
AOS-certified operators are authorized to perform biometric authentication, OTP-based verification, and demographic checks for a wide range of government and financial services. This certification is mandatory for field agents and CSPs involved in Aadhaar-enabled payment systems (AePS) and e-KYC services.
BLS E-Services prepares you with structured content, practice tests, and live guidance so you clear the AOS exam confidently on your first attempt.
Understand the complete AUA/KUA/Sub-AUA ecosystem and perform biometric & OTP authentication correctly.
Stay aligned with UIDAI guidelines, data protection rules, and the Aadhaar Act 2016 provisions.
Learn the consent framework, data minimisation practices, and how to protect resident data during transactions.
AOS certification is a mandatory credential for agents working on government delivery systems using Aadhaar.
Topic-wise structured content, mock questions, and exam tips to help you clear the AOS exam on the first attempt.
Receive an official BLS E-Services training certificate along with UIDAI AOS certification upon exam completion.
Structured across 6 key modules aligned with the UIDAI AOS certification framework.
| Module | Topics Covered |
|---|---|
1 |
Aadhaar Overview UIDAI Structure Aadhaar Act 2016 Ecosystem Roles |
2 |
AUA / KUA / Sub-AUA Framework Authentication Channels Operator Responsibilities |
3 |
Biometric Authentication OTP Authentication Demographic Authentication Multi-factor Auth |
4 |
Resident Consent Framework Data Minimisation Privacy Protection DPDP Act Linkage |
5 |
Error Codes & Troubleshooting Grievance Redressal Authentication Failure Handling |
6 |
AOS Exam Pattern Mock Questions Exam Strategies Certification Process |
Ready to become a certified Aadhaar Authentication Operator?
Register for AOS Certification