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If you have to register or change the mobile number in your PAN card, for that you will have to fill the PAN card correction form, this can be done from the PAN center, if you have the knowledge of filling the online form, you can go to the website of NSDL or UTI. SW PAN correction can be done, for this you will have to pay 107 rupees almost charge online, if you want to check the full process then you visit mypancenter.com website, it provides training related to PAN card.
In case of PAN Card loss, to recover the PAN card, first you will have to know your PAN card number, then you will have to submit the PAN card correction form, by doing this you will get the PVC PAN card at your home address once again. To know the PAN card number, you can call toll free number of NSDL or UTI or ITD, and on telling the Aadhaar card number you will get the full PAN card number. If you only want to check whether any PAN card number is linked to your Aadhaar card number then you can do so on this link https://pan.errorsolution.net/check-pan-aadhaar-link-status-alternative-website. You can visit here, you will have to enter your PAN number or any one of Aadhaar number, you will know whether PAN number is linked to Aadhaar or not, before that you will have to login to the website and then click on the link.