Aadhaar – Frequently Asked Questions (FAQs)

1. What is Aadhaar?

Aadhaar is a 12-digit unique identity number issued by the Unique Identification Authority of India (UIDAI) to Indian residents, based on demographic and biometric data.


2. Is Aadhaar mandatory for everyone?

No, Aadhaar is voluntary, but it is required for availing government subsidies, banking, SIM cards, income tax filing, and many digital services.


3. How can I apply for Aadhaar?

You can apply by visiting the nearest Aadhaar Enrollment Center with valid documents (PoI, PoA, DoB proof). Biometric and demographic details are captured, and Aadhaar is issued after verification.


4. Is there any fee for Aadhaar enrolment?

No, new Aadhaar enrolment is free of cost.


5. How long does it take to get Aadhaar after enrolment?

It usually takes 7–20 days for Aadhaar to be generated and delivered by post.


6. How can I check Aadhaar status?

Visit the UIDAI portal, enter your EID (Enrolment ID) or Aadhaar number, and captcha to check status online.


7. What is e-Aadhaar?

e-Aadhaar is the digital version of Aadhaar, available in PDF format. It is digitally signed by UIDAI and equally valid as a physical Aadhaar card.


8. How to download Aadhaar online?

Go to UIDAI portal, login with Aadhaar number and OTP, and download e-Aadhaar in PDF format.


9. What is Masked Aadhaar?

Masked Aadhaar hides the first 8 digits of your Aadhaar number, showing only the last 4 digits. It is safer for sharing with private organizations.


10. What is Virtual ID (VID)?

VID is a 16-digit temporary number generated by UIDAI to be used instead of Aadhaar number for authentication and eKYC.


11. How can I generate Virtual ID?

Login to UIDAI portal or mAadhaar app, select VID Generator, and generate a new VID instantly. It can also be requested via SMS to 1947.


12. Can I order a PVC Aadhaar card?

Yes, UIDAI allows you to order a PVC Aadhaar card online for ₹50, including printing and speed post delivery.


13. How to track PVC Aadhaar card delivery?

Login to UIDAI portal → “Check PVC Status” → Enter SRN. Once dispatched, you can track it on India Post tracking website.


14. What is URN in Aadhaar?

URN = Update Request Number. It is generated after submitting an Aadhaar update request. It is used to track update status.


15. What details can I update online?

You can update name, address, DOB, gender, mobile number, and email ID online. Biometrics/photo must be updated offline.


16. What documents are required for Aadhaar update?

  • PoI (Identity Proof): PAN, Passport, Voter ID
  • PoA (Address Proof): Utility bills, Bank statement, Passport
  • DoB Proof: Birth certificate, SSLC certificate, Passport

17. Can I update mobile number online?

No, updating or adding a new mobile number requires visiting an Aadhaar Enrollment/Update Center with biometrics.


18. Is Aadhaar update free?

No, Aadhaar updates are charged at ₹50 per request (demographic) and ₹100 per request (biometrics).


19. How can I locate the nearest Aadhaar center?

Use UIDAI’s Locate Enrollment & Update Center tool on their portal or mAadhaar app by entering PIN code or district.


20. Can NRIs apply for Aadhaar?

Yes, NRIs (Non-Resident Indians) residing in India for more than 182 days in the past 12 months are eligible.


21. Is Aadhaar valid outside India?

No, Aadhaar is valid only within India. However, it can be used as an identity proof when returning to India.


22. How secure is Aadhaar data?

UIDAI uses advanced encryption and biometric locking systems. Aadhaar data is not shared without user consent.


23. Can I hold more than one Aadhaar?

No, each individual can have only one Aadhaar number. Multiple Aadhaar numbers are not allowed.


24. What if my Aadhaar is lost?

You can download e-Aadhaar from UIDAI website or order a PVC Aadhaar card. You can also retrieve Aadhaar using UID or EID.


25. What is Aadhaar Authentication?

It is the process where UIDAI verifies your details (demographic/biometric/OTP) to confirm your identity.


26. What is KYC with Aadhaar?

KYC (Know Your Customer) using Aadhaar is used by banks, telecom, and financial institutions to verify identity through Aadhaar eKYC.


27. Can I lock/unlock my Aadhaar?

Yes, UIDAI allows you to lock/unlock Aadhaar biometrics or use VID for safer authentication.


28. Is Aadhaar mandatory for income tax filing?

Yes, linking Aadhaar with PAN is mandatory for filing income tax returns in India.


29. Can I download Aadhaar without mobile number?

No, registered mobile is required for OTP authentication. Without it, you must visit Aadhaar center to update mobile.


30. What is the helpline number of UIDAI?

The toll-free UIDAI helpline is 1947, available in multiple languages for Aadhaar-related support.

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