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UIDAI Number: Your Complete Guide to Aadhaar Details
July 6, 2026 · 10 min read

UIDAI Number: Your Complete Guide to Aadhaar Details

Manage your Aadhaar with ease. Learn how to check, update, and retrieve your UIDAI number and crucial Aadhaar details online and offline.

July 6, 2026 · 10 min read
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Your Aadhaar card is a vital document in India, serving as proof of identity and address. At its core is the unique 12-digit UIDAI number, issued by the Unique Identification Authority of India (UIDAI). Understanding your UIDAI number and how to manage it is essential for accessing various government services, financial transactions, and more. This comprehensive guide will walk you through everything you need to know about your UIDAI number, from checking its status to updating your information and resolving common queries.

What is the UIDAI Number and Why is it Important?

The UIDAI number, commonly known as the Aadhaar number, is a randomly generated 12-digit number. It's not based on any personal information but is assigned to each resident of India after a verification process. This number acts as a universal identity, simplifying the process of availing services and subsidies provided by the government. Whether you're opening a bank account, applying for a passport, or filing your income tax returns, your Aadhaar number is often a prerequisite.

Key Operations Related to Your UIDAI Number:

Managing your Aadhaar information is crucial for its effective use. The UIDAI provides several online and offline mechanisms to ensure your details are up-to-date and accessible. The most common operations revolve around checking the status of your Aadhaar application or updates, updating your personal information, and knowing how to reach out for assistance.

Checking the Status of Your Aadhaar Application or Update

After enrolling for Aadhaar or requesting an update, you'll receive an enrollment number or an update request number. This number is crucial for tracking the progress of your application. Most users want to know "how to check UIDAI status" for their applications or recent updates. The process is straightforward and can be done online.

Online Status Check

  1. Visit the UIDAI Website: Navigate to the official UIDAI website (uidai.gov.in).
  2. Find the "Check Aadhaar Status" Option: Look for a section related to Aadhaar services or your account. You'll typically find an option like "Check Aadhaar/Enrolment & Update Status."
  3. Enter Your Details: You will need to enter your 28-digit enrollment number (if you've just enrolled) or your 14-digit update request number (if you've requested an update).
  4. Provide Security Code: Enter the captcha code displayed on the screen.
  5. Click "Check Status": The system will then display the current status of your Aadhaar generation or the update request.

What if I can't find my enrollment number? If you've lost your enrollment number, you can often retrieve it by providing your registered mobile number or email address on the UIDAI portal. This helps in re-generating the number required for the status check.

What Your Status Might Indicate:

  • "Generated": Your Aadhaar number has been generated. You can now download your e-Aadhaar.
  • "Pending"/"Under Process": Your application is being processed. This can take a few days or weeks.
  • "Rejected": Your application has been rejected. The reason for rejection will usually be provided, and you may need to re-apply or correct the information.

Updating Your UIDAI Number Information

Your personal details can change over time. It’s imperative to keep your Aadhaar information accurate and updated. This includes your name, address, date of birth, mobile number, and email address. The UIDAI offers seamless online and offline methods for these updates.

Why Update Your Details?

  • Accuracy: Ensures your Aadhaar matches your other official documents.
  • Service Access: Incorrect details can lead to rejection of applications for services and benefits.
  • Communication: An updated mobile number is crucial for receiving OTPs for online transactions and updates.

Online Update Process

The UIDAI allows residents to update most demographic details online, provided they have their Aadhaar linked to a valid mobile number. This is the most convenient way for many to manage their "UIDAI update status" or make changes.

  1. Visit UIDAI's My Aadhaar Portal: Go to the "My Aadhaar" section on the UIDAI website.
  2. Log In: Use your Aadhaar number and the OTP sent to your registered mobile number to log in.
  3. Select "Update Aadhaar Online": Choose the option for online demographic updates.
  4. Choose the Field to Update: You can update your name, address, date of birth, and gender. Note that for name updates, there might be a limit on the number of times you can update it.
  5. Enter New Details: Carefully enter the new information as per your supporting documents.
  6. Upload Supporting Documents: You will need to upload scanned copies of valid supporting documents (e.g., passport, ration card, driving license) for the details you are updating. For address changes, a new address proof is mandatory.
  7. Review and Pay: Review all the entered details carefully. Once confirmed, proceed to make a nominal payment for the update service (currently ₹50).
  8. Submit: Submit your request.

Important Note on Mobile Number Update: If you need to update your registered mobile number, you must visit an Aadhaar Enrolment/Update Centre. This is a security measure to prevent unauthorized changes. After visiting the centre, you will receive an SMS confirmation of the update. You can then use your Aadhaar number and OTP for subsequent online updates.

Offline Update Process

For those who prefer a physical process or need to update details like biometrics (fingerprints, iris scan, photograph), or if their mobile number needs changing, visiting an Aadhaar Enrolment/Update Centre is the way to go.

  1. Locate the Nearest Centre: Use the UIDAI website or mobile app to find the nearest Aadhaar Enrolment/Update Centre.
  2. Fill the Aadhaar Update Form: Obtain and accurately fill out the Aadhaar Update Form. Ensure you tick the correct boxes for the details you wish to update.
  3. Submit Form and Documents: Submit the form along with self-attested photocopies of your supporting documents and your Aadhaar card to the operator at the centre.
  4. Biometric Capture: Your biometrics (fingerprints, iris scan, photograph) will be captured by the operator.
  5. Pay the Fee: Pay the prescribed fee for the update service.

After submission at the centre, you will receive an acknowledgement receipt with the update request number. You can then use this to track your "UIDAI update status" online, similar to the online application process.

UIDAI Phone Number Update and Other Contact Information

Keeping your registered mobile number and email address updated is paramount. A "UIDAI phone number update" is one of the most common requirements, as it's linked to receiving OTPs and notifications. As mentioned, this requires a visit to an Aadhaar Enrolment Centre.

UIDAI Helpline Number and Customer Care

If you encounter issues or have queries regarding your Aadhaar, the UIDAI provides a helpline. The "UIDAI customer care number" is your direct line to assistance.

  • Toll-Free Number: 1947

This number connects you to the UIDAI's national helpline, where trained agents can assist you with a wide range of Aadhaar-related queries, including status checks, update issues, and general information.

Email Support

For less urgent queries or to provide feedback, you can also reach out via email:

Postal Address

While not for quick queries, the UIDAI's headquarters can be reached by post:

Unique Identification Authority of India Bangla Sahib Road, Near Gol Market, New Delhi – 110001

Types of Updates and What You Need

Understanding what kind of update you need is the first step. Common updates include:

  • Demographic Updates: Name, Address, Date of Birth, Gender, Email, Mobile Number.
  • Biometric Updates: Photograph, Fingerprints, Iris Scan.

Documents Required for Updates

The supporting documents required depend on the detail you are updating.

  • For Name Update: Marriage certificate, Gazette notification, Name change affidavit, Passport, Government ID card, etc.
  • For Address Update: Passport, Bank Statement/Passbook, Ration Card, Driving License, Electricity Bill, Water Bill, Telephone Bill, Gas Connection Bill, etc. (not older than 3 months, for utility bills).
  • For Date of Birth Update: Birth Certificate, School Leaving Certificate, Passport, PAN Card, Marksheet issued by a recognised board (containing name and DOB), etc.
  • For Mobile Number/Email Update: No document is required for the request, but you must visit an Aadhaar centre. For verification purposes, the number must be yours and verifiable.

Biometric Updates: These don't require specific documents beyond your existing Aadhaar card for identification at the enrolment centre.

Enrollment Number UIDAI: Your Key to Tracking

The "enrollment number UIDAI" is a critical piece of information provided at the time of your initial Aadhaar enrollment or when you submit a request for an update. It's a 28-digit number that looks something like this: XXXX/XXXXX/XXXXX. The first five digits represent the enrolment centre code, followed by five digits for the date and time of enrolment, and another five digits for your enrolment sequence number. Along with the date and time, this number is vital for checking the "UIDAI number check" status of your application and ensuring your "UIDAI check status" is progressing.

Losing this number can be inconvenient. If you've lost it, you can usually retrieve it by visiting the UIDAI website and using the "Retrieve Lost or Forgotten EID/UID" service. You'll need to provide your registered mobile number or email address to receive your Enrollment Number (EID) or Aadhaar Number.

UIDAI Biometric Update: Enhancing Security

Biometric data – your fingerprints, iris scans, and photograph – are unique identifiers. A "UIDAI biometric update" is necessary if your biometrics have changed significantly (e.g., due to age or injury) or if you suspect a security breach. Biometric updates can only be done at Aadhaar Enrolment/Update Centres. This ensures the integrity of your unique biometric data linked to your "UIDAI number."

When you visit for a biometric update, the operator will capture your new biometrics. This process is essential for maintaining the accuracy and security of your Aadhaar profile. It’s a good practice to get your biometrics updated periodically, especially for children as they grow older, to ensure they still match their current physical appearance and characteristics.

Frequently Asked Questions (FAQ) about UIDAI Number

Q1: How do I find my UIDAI number if I've lost my Aadhaar card?

If you've lost your Aadhaar card, you can retrieve your UIDAI number using the "Retrieve Lost or Forgotten EID/UID" service on the UIDAI website. You'll need your registered mobile number or email address.

Q2: Can I change my Aadhaar number?

No, your Aadhaar number (UIDAI number) is permanent and cannot be changed. However, you can update your demographic and biometric information associated with it.

Q3: How long does it take to get my Aadhaar card after enrollment?

Typically, it takes about 90 days from the date of enrollment for your Aadhaar card to be generated. You can track the "UIDAI check status" online using your enrollment number.

Q4: What is the difference between Enrollment Number and Aadhaar Number?

The Enrollment Number (EID) is a temporary number given at the time of enrollment, used to track the application status. The Aadhaar Number (UIDAI Number) is the permanent 12-digit unique identification number generated after successful verification.

Q5: Can I update my Aadhaar details without visiting an enrolment centre?

Most demographic details (name, address, DOB, gender) can be updated online via the My Aadhaar portal. However, a mobile number update or any biometric update (photo, fingerprints, iris) requires a visit to an Aadhaar Enrolment/Update Centre.

Q6: How can I check my Aadhaar card status after an update?

After submitting an update request (online or offline), you receive an Update Request Number. Use this number on the UIDAI website or My Aadhaar portal to track your "UIDAI update status."

Conclusion

Your UIDAI number is the key to your digital identity in India. By understanding how to check its status, update your personal and biometric information, and utilize the UIDAI helpline, you can ensure your Aadhaar remains a reliable tool for accessing essential services. Always refer to the official UIDAI website for the most current information and procedures. Staying informed and keeping your details accurate empowers you to navigate the digital landscape of services with confidence.

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