Yes, you can change the mobile number on your PAN card. The process for updating the mobile number on your PAN card is called PAN card correction or PAN card update.

Here are the steps you can follow to change the mobile number on your PAN card:

1. Visit the official website of the Income Tax Department of India
2. Click on the “Services” tab, and then select “PAN” under the “Quick links” section.
3. Select the “Correction of PAN data” option and click on “Continue”
4. Fill in the online application form with the necessary details such as your PAN number, personal information, and the new mobile number you want to update.
5. Upload the required documents such as a scanned copy of your PAN card and proof of identity and address.
6. Pay the necessary fee for the application.
7. Submit the application and note down the acknowledgement number generated.
8. Track the status of your application on the website using the acknowledgement number.
9. Once your application is approved, you will receive the updated PAN card at the address mentioned in the application form.

It’s worth noting that, you can also apply for PAN card correction by visiting the nearest UTIITSL or NSDL centre.

It’s also worth noting that, it’s important to update your mobile number on your PAN card to receive important alerts and notifications related to your PAN card and to avoid any inconvenience in the future.