Linking PAN (Permanent Account Number) with Aadhaar in India can be done through online and offline methods. Here’s how:

Online Method:

1. Visit the e-Filing Website: Go to the Income Tax e-Filing website incometaxindiaefiling.gov.in.

2. Login: If registered, log in using your PAN, password, and date of birth. If not, register first.

3. Link Aadhaar: Under the 'Profile Settings' tab, select 'Link Aadhaar'.

4. Enter Details: Provide your PAN, Aadhaar number, and name as per Aadhaar.

5. OTP Verification: An OTP will be sent to your Aadhaar-registered mobile number. Enter the OTP to confirm.

6. Confirmation: After successful verification, you’ll receive a confirmation message.

Offline Method:

1. Obtain Form: Get Form 49A or 49AA from a PAN service center or download it online.

2. Fill the Form: Complete the form with required details, including PAN and Aadhaar number.

3. Submit the Form: Submit the filled form at the nearest PAN service center or NSDL TIN facilitation center.

4. Receive Acknowledgment: You will receive an acknowledgment receipt upon submission.

Important Points:

• Ensure that the details on PAN and Aadhaar match exactly.
• Check the deadline for linking PAN and Aadhaar, as it may change.
• Linking is mandatory under Section 139AA of the Income Tax Act.

By linking PAN with Aadhaar, you simplify compliance with tax regulations and facilitate various services