The Aadhaar card is the most important identity document in India today. It is a 12-digit unique identification number issued by the Unique Identification Authority of India (UIDAI) to residents of India. Aadhaar acts as proof of identity and address and is widely used for banking, government subsidies, taxation, mobile connections, and more.

This guide explains everything you need to know about Aadhaar, including how to apply, update, and manage your Aadhaar card, step by step.

What Is Aadhaar?

Aadhaar is a biometric and demographic identification system.

It contains your:

• Name
• Date of Birth
• Gender
• Address
• Mobile number 
• Biometric data: fingerprint scans and iris scans

It is unique to every individual and is recognized across India for authentication purposes.

Key Points:

• It is mandatory for certain services like filing income tax returns, linking bank accounts, and government schemes.
• It is not proof of citizenship, but only proof of identity and residence in India.

Update Aadhaar Card

The Unique Identification Authority of India (UIDAI) provides services to update or correct Aadhaar details. Depending on the type of information you want to modify, updates can be done online or offline.

1. Methods to Update Aadhaar

A. Online Updates

• Available only for Proof of Identity (PoI) and Proof of Address (PoA).
• You can access the online facility via the official UIDAI portal: Update Aadhaar POI/POA Online.
• The process requires uploading scanned copies of valid documents and verifying your identity using the OTP sent to your registered mobile number.

B. Offline Updates

• All other Aadhaar details—including name, date of birth, gender, mobile number, email, address, or biometric information (photo, iris scan, fingerprints)—can only be updated offline.
• To update offline, you must schedule an appointment online and visit the nearest Aadhaar Seva Kendra (ASK) in person.
• Bring the required documents and supporting proofs for the update.

Note: Some updates, like minor spelling corrections in name or address changes, can be combined in a single request.

Aadhaar Update Charges

The UIDAI has set specific fees for updating Aadhaar details, depending on the type of update. Updates fall into three main categories: biometric, demographic, and document updates.

1. Biometric Updates

• Updates include fingerprint, iris, and photograph.
• Charges vary based on the age at which the update is performed:

2. Demographic Updates

• Updates include name, gender, date of birth, address, mobile number, email, or any combination of these.

3. Document Submission Updates

• Submission of documents as proof for name, gender, date of birth, address, or other enrolled details.

Key Points to Remember

• Biometric updates for children (5–7) and teens (15–17) are free once.
• Demographic updates are free only if submitted together with a biometric update; otherwise, a fee applies.
• Online submission of documents via myAadhaar portal is free until 14th June 2026; offline submission at the Aadhaar center costs ₹50.
• Keep the Update Request Number (URN) after any update for tracking purposes.

Aadhaar Update Limits

UIDAI has set specific rules on how often certain details can be updated to maintain data accuracy and prevent misuse. Here’s a detailed breakdown:

A. Date of Birth (DOB) – Update Allowed Only Once

• You can correct your DOB only once in your lifetime.
• Applicable even for minor corrections, such as fixing a single digit in the year or day.

B. Gender – Update Allowed Only Once

• Gender can be updated only once in your lifetime.
• Minor changes (e.g., male → female, female → third gender) count as the single allowed update.

C. Name – Can Be Updated Twice

• Name changes are allowed twice in a lifetime.
• Minor edits (spelling corrections) or major changes (after marriage, adding/removing middle names) count toward this limit.

D. Address – Unlimited Updates

• Address can be updated any number of times.
• Useful for individuals who frequently relocate due to jobs, rentals, or personal reasons.

3. Summary Table of Aadhaar Update Limits

Key Points to Remember

• All updates require accurate documentation. Incomplete or unclear documents may lead to rejection.
• Combining multiple updates (like name and address) in a single request is possible.
• Updates are generally processed within 7–15 working days, though it may take longer in exceptional cases.
• Keep the Update Request Number (URN) safe for tracking the status of your application.

Aadhaar Update Document Requirements

When updating Aadhaar details, UIDAI requires specific documents to verify identity, address, date of birth, and relationships. The documents differ depending on the type of update.

1. Standard Updates for Individuals (All Ages)

2. Exceptional Updates (After Standard Limits)

For updates beyond UIDAI limits (e.g., name, gender, or DOB after allowed number of updates):

3. Notes and Guidelines

1. Validity: All documents must be currently valid.
2. Individual’s Name: Documents must be in the applicant’s name; family members’ documents cannot be used.
3. Address & PoR: For minors, address can be taken from Head of Family (HoF). Proof of Relationship is required for children.
4. Foreign Nationals:

• OCI Cardholders: Aadhaar valid for 10 years
• Nepal/Bhutan Nationals: Aadhaar valid for 10 years
• LTV Holders: Aadhaar valid until visa expiry
• Regular foreign nationals: Aadhaar valid until visa expiry

How to Update Your Mobile Number in Aadhaar

Your mobile number linked with Aadhaar is essential for receiving OTPs for authentication and accessing various UIDAI services. If your mobile number has changed, lost, or is not registered, follow the methods below to update or register your mobile number.

Method 1. Update Mobile Number via Aadhaar Enrolment Centre (Offline)

This is the most common method for updating or registering your mobile number on Aadhaar Card. To do so, follow the steps provided below:

• Locate the Nearest Aadhaar Enrolment Centre: Visit the Bhuvan Aadhaar Portal to find the nearest centre.
• Visit the Centre: Go to the selected Aadhaar Enrolment Centre in person.
• Request Mobile Number Update: Inform the operator that you wish to update your mobile number.
• Biometric Authentication: Undergo biometric authentication (fingerprint and/or iris scan) for identity verification.
• Receive Acknowledgement Slip: After processing, you’ll receive an Acknowledgement Slip containing a Service Request Number (SRN).
• Processing Time: The update is typically processed within 30 days.
• Notification: Once updated, you’ll receive an SMS on your new mobile number confirming the update.

Note: No documents are required to update your mobile number.

Method 2. Update Mobile Number via Post (For NRIs/OCIs)

If you’re an NRI or OCI and unable to visit an Aadhaar Enrolment Centre, you can update your mobile number by post:

• Download the Aadhaar Update Request Form: Obtain the form from the UIDAI website.
• Fill Out the Form: Complete the form with accurate details.
• Attach Required Documents: Include a self-attested copy of your Aadhaar card.
• Mail the Request: Send the completed form and documents to one of the following addresses:

1. UIDAI, Post Box No. 10, Chhindwara, Madhya Pradesh – 480001, India
2. UIDAI, Post Box No. 99, Banjara Hills, Hyderabad – 500034, India

• Processing Time: The update is typically processed within 30 days.
• Notification: Once updated, you’ll receive an SMS on your new mobile number confirming the update.

Note: Ensure that the mobile number you wish to register is active and accessible to receive the confirmation SMS.

Important Information

• No Online Update for Mobile Number: UIDAI does not permit online updates for mobile numbers.
• No Additional Documents Required: Updating your mobile number does not require any supporting documents.
• No Physical Aadhaar Card Issued: After updating your mobile number, a physical Aadhaar card will not be issued. Only an SMS notification will be sent to your new mobile number.

How to Update Your Aadhaar Address

Updating your address in Aadhaar ensures that all communications and services linked to your Aadhaar are directed to your current residence. UIDAI offers multiple methods to update your address, each catering to different needs and circumstances.

Method 1. Online Address Update via myAadhaar Portal

This method allows residents to update their address online, provided they have a registered mobile number linked to their Aadhaar. To do so, follow the steps provided below:

• Visit the Official Portal: Navigate to https://myaadhaar.uidai.gov.in/.
• Login: Enter your Aadhaar number and complete the OTP authentication sent to your registered mobile number.
• Select ‘Update Address’: Choose the ‘Update Address’ option from the dashboard.
• Fill in the Details: Enter your new address in the provided fields.
• Upload Proof of Address (PoA): Scan and upload a valid PoA document from the List of Supporting Documents.
• Review and Submit: Verify the entered details and submit the request.
• Service Request Number (SRN): Upon successful submission, an SRN will be generated. Note this number for tracking the status of your update.
• Processing Time: The update is typically processed within 30 days.
• Notification: Once updated, you’ll receive an SMS on your registered mobile number confirming the update.

Note: A fee of ₹50 (inclusive of GST) is applicable for online address updates.

Method 2. Update Address via Aadhaar Enrolment Centre (Offline)

If you prefer in-person assistance or face challenges with online methods, visiting an Aadhaar Enrolment Centre is a reliable option.

• Locate the Nearest Centre: Use the Bhuvan Aadhaar Portal to find the nearest Aadhaar Enrolment Centre.
• Visit the Centre: Go to the selected centre with the necessary documents.
• Request Address Update: Inform the operator that you wish to update your address.
• Submit Proof of Address: Provide a valid PoA document for verification.
• Biometric Authentication: Undergo biometric authentication (fingerprint and/or iris scan) for identity verification.
• Receive Acknowledgement: After processing, you’ll receive an Acknowledgement Slip containing a Service Request Number (SRN).
• Processing Time: The update is typically processed within 30 days.
• Notification: Once updated, you’ll receive an SMS on your registered mobile number confirming the update.

Note: A fee is applicable for updates at the enrolment centre. UIDAI

Method 3. Update Address via Post (For NRIs/OCIs)

If you’re an NRI or OCI and unable to visit an Aadhaar Enrolment Centre, you can update your address by post. The process to update the address on Aadhaar for NRIs and OCIs is provided below:

• Download the Aadhaar Update Request Form: Obtain the form from the UIDAI website.
• Fill Out the Form: Complete the form with accurate details.
• Attach Required Documents: Include a self-attested copy of your Aadhaar card and a valid PoA document.
• Mail the Request: Send the completed form and documents to one of the following addresses:

1. UIDAI, Post Box No. 10, Chhindwara, Madhya Pradesh – 480001, India
2. UIDAI, Post Box No. 99, Banjara Hills, Hyderabad – 500034, India

• Processing Time: The update is typically processed within 30 days.
• Notification: Once updated, you’ll receive an SMS on your registered mobile number confirming the update.

Note: Ensure that the mobile number you wish to register is active and accessible to receive the confirmation SMS.

Method 4. Update Address for Minors (Under 18 Years)

For individuals under 18 years, the address update can be done through the Head of Family (HoF) method.

• Eligibility: The HoF can be the Mother, Father, or Legal Guardian.
• Provide Proof: The HoF must provide a valid PoA document along with the minor’s Aadhaar details.
• Visit the Enrolment Centre: Both the minor and HoF must visit an Aadhaar Enrolment Centre together.
• Biometric Authentication: Biometric authentication of the minor is not required.
• Receive Acknowledgement: After processing, an Acknowledgement Slip containing a Service Request Number (SRN) will be provided.
• Processing Time: The update is typically processed within 30 days.
• Notification: Once updated, an SMS will be sent to the registered mobile number confirming the update.

Note: The HoF method is applicable only for address updates.

Important Information

• No Online Update for Mobile Number: UIDAI does not permit online updates for mobile numbers.
• No Additional Documents Required: Updating your address does not require any supporting documents beyond the PoA document.
• No Physical Aadhaar Card Issued: After updating your address, a physical Aadhaar card will not be issued. Only an SMS notification will be sent to your registered mobile number.

How to Update Date of Birth on Aadhaar Card

As of September 2025, updating the Date of Birth (DoB) on your Aadhaar card is not supported through online channels. To make such an update, you must visit an Aadhaar Seva Kendra (ASK) in person. Below is a comprehensive, step-by-step guide to assist you in this process:

Step-by-Step Guide to Updating Date of Birth on Aadhaar

Step 1: Book an Appointment at an Aadhaar Seva Kendra

• Navigate to the official UIDAI website: uidai.gov.in.
• Under the “My Aadhaar” section, select “Book an Appointment”.
• Choose your city and Aadhaar Seva Kendra from the dropdown menus.
• Click on “Proceed to Book Appointment”.
• Enter your 12-digit Aadhaar number and the captcha code displayed.
• Click “Get OTP” to receive a One-Time Password on your registered mobile number.
• Enter the OTP and click “Login”.
• Select “Update Existing Aadhaar Details”.
• Choose “Date of Birth” as the field to update.
• Click “Preview” to review your details.
• Confirm the information and proceed to select your preferred appointment date and time.
• Complete the payment of ₹50 for the update service.
• Download and print the Application Form provided.

Step 2: Visit the Aadhaar Seva Kendra

On the scheduled date:

• Arrive at the Aadhaar Seva Kendra at least 15 minutes before your appointment time.
• Bring the following documents:

  • Original and photocopy of your valid Date of Birth proof (e.g., Birth Certificate, Passport, Board Exam Certificate, etc.).

  • Printed Application Form.

  • Appointment Acknowledgment Receipt.

• Submit these documents to the Aadhaar operator.
• The operator will verify your documents and process your request.
• You will receive an Acknowledgment Slip. Retain this slip to track the status of your update request.

Important Considerations

• Update Limit: You are permitted to update your Date of Birth on Aadhaar only once. Further updates are allowed under exceptional circumstances.

• Exceptional Cases: If you have already updated your Date of Birth once and need another correction, you must:

  1. Re-enrol at an Aadhaar Enrolment Centre with a new Birth Certificate and an affidavit.

  2. After rejection due to the limit being exceeded, contact UIDAI via:

     • Helpline 1947

     • Email: grievance@uidai.gov.in

  3. Provide the following documents:

     • Enrolment ID (EID) or Service Request Number (SRN).

     • New Birth Certificate.

     • Affidavit.

     • Cancelled copy of the previous Birth Certificate (if applicable).

  4. Your request will be processed with the recommendation of the concerned Regional Office. 

Processing Time for Aadhaar Card Update

Typically, the update process takes 10–15 working days. However, in exceptional cases, it may take up to 90 days. You can check the status of your update request at Check Aadhaar Status.

How to Update Name on Aadhaar Card

As of September 2025, the Unique Identification Authority of India (UIDAI) allows name updates on Aadhaar cards through both online and offline methods, depending on the nature of the change.

Method 1: Online Name Update on Aadhaar (for Minor Corrections)

For minor corrections in your name (e.g., spelling errors), you can update your Aadhaar details online:

• Visit the Official UIDAI Website: Go to myAadhaar UIDAI.
• Login: Enter your 12-digit Aadhaar number and the captcha code.
• OTP Verification: Click on “Send OTP” to receive a one-time password on your registered mobile number. Enter the OTP to proceed.
• Select Update Option: On your dashboard, choose “Update Aadhaar Online”.
• Choose Update Type: Select “Name” from the list of updateable details.
• Upload Supporting Documents: Provide a scanned copy of a valid Proof of Identity (PoI) document that contains your correct name. Check List of Supporting Documents Here.
• Review and Submit: Verify the details and submit your request.
• Payment: Pay the processing fee using available payment methods.
• Acknowledgment: After submission, you’ll receive an Update Request Number (URN) to track the status of your request.

Note: The online update service is only available for minor corrections. 

Method 2: Offline Name Update on Aadhaar (for Major Changes)

For significant name changes (e.g., due to marriage, divorce, or legal name change), you must visit an Aadhaar Seva Kendra (ASK):

• Locate an Aadhaar Seva Kendra: Use the Aadhaar Seva Kendra Locator to find the nearest center.
• Book an Appointment: Schedule an appointment online through the UIDAI portal.
• Fill the Update Form: Complete the Aadhaar Update/Correction Form available at the center or download it from the UIDAI website.
• Provide Supporting Documents: Submit original documents supporting the name change, such as:

  • Gazette notification (for legal name change)

  • Marriage certificate (if applicable)

  • Divorce decree (if applicable)

  • Adoption certificate (if applicable)

  • Valid PoI document (e.g., passport, PAN card)

• Biometric Verification: Your fingerprints, iris scan, and photograph will be captured.
• Payment: Pay the processing fee of ₹50.
• Acknowledgment: Receive an acknowledgment slip with an Update Request Number (URN) to track the status of your request.

Note: For a full name change, a gazette notification is mandatory. 

Documents Required for Name Update

Depending on the nature of the name change, the following documents may be required:

Minor Corrections:

• Valid PoI document containing the correct name (e.g., passport, PAN card).

Major Changes:

• Gazette notification (for legal name change).
• Marriage certificate.
• Divorce decree.
• Adoption certificate.
• Valid PoI document with the old name.

Important: For residents born on or after October 1, 2023, a birth certificate is mandatory for name updates.

How to Download an Updated Aadhaar Card

Once your name update is approved, you can download the updated Aadhaar card:

• Visit UIDAI Portal: Go to myAadhaar Portal.
• Login: Enter your Aadhaar number and the captcha code.
• OTP Verification: Receive and enter the OTP sent to your registered mobile number.
• Download Aadhaar: Click on “Download Aadhaar” to get the updated PDF version.

Note: Ensure that your mobile number is registered with UIDAI to receive the OTP.

What to Do If Your Update Request Is Rejected

If your name update request is rejected:

• Check the Reason: Review the rejection message for specific details.
• Contact UIDAI: Reach out to UIDAI at help@uidai.net.in or call 1947 for assistance.
• Provide Additional Documents: Submit any additional documents or clarifications as requested by UIDAI.