Understanding Aadhaar: What It Is and How to Update Your Details in 2026

By GSOCIND Admin • October 28, 2026 • 3 views

Aadhaar is a 12-digit unique identity number issued by the Unique Identification Authority of India (UIDAI). It serves as a proof of identity and address for residents of India. In this guide, we will explain what Aadhaar is, how it is used, and how you can update your details online.

What is Aadhaar and Why Do You Need It?

Aadhaar is more than just an ID card. It acts as a bridge between the government and citizens, ensuring that benefits and subsidies reach the intended recipients directly. The card contains your demographic and biometric data, including fingerprints and iris scans.

Key Uses of Aadhaar:

  • Direct Benefit Transfers (DBT): Subsidies for LPG, food grains, and scholarships are linked to Aadhaar.
  • Bank Accounts and KYC: Aadhaar is used for instant KYC in banks and mobile SIM registration.
  • Tax Filing: Linking Aadhaar with PAN is mandatory for filing income tax returns.
  • Government Exams: Aadhaar is required as ID proof for UPSC, SSC, and other exams.

How to Update Aadhaar Details Online

If you have moved to a new address, changed your name after marriage, or need to update your mobile number, you can do so online through the UIDAI Self-Service Portal.

Step 1: Visit the UIDAI Portal

Go to myaadhaar.uidai.gov.in and log in using your Aadhaar number, a One-Time Password (OTP), and a captcha.

Step 2: Select "Update Aadhaar Online"

Choose the update you need: Address, Name, Gender, Date of Birth, or Mobile Number.

Step 3: Upload Supporting Documents

For an address update, upload a scanned copy of your new electricity bill, bank statement, or rent agreement. For a name change, upload a marriage certificate or gazette notification.

Step 4: Pay the Fee

There is a small fee (usually ₹50) for updating demographic details. Pay online using UPI or net banking.

Step 5: Update Status

You will receive an Update Request Number (URN) to track the status. Once the documents are verified, your Aadhaar will be updated.

How to Update Mobile Number in Aadhaar

Mobile number updates cannot be done online. You must visit a nearby Aadhaar Enrolment Centre (AEC) or Aadhaar Seva Kendra. Carry your original Aadhaar card and a valid ID proof. The biometric authentication will be done on-site.

What is an Aadhaar Virtual ID (VID)?

Aadhaar VID is a 16-digit temporary number that you can generate online. It acts as an alternative to sharing your full Aadhaar number for authentication. You can generate a VID using the UIDAI portal or the mAadhaar app.

Conclusion

Aadhaar is an essential document for every Indian resident. Keep your details updated and secure. Never share your Aadhaar OTP with anyone, as it can lead to identity fraud.


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