When a user trying to register Digital Signature Certificate (DSC) on Income Tax e-filing Website, the error displayed "The PAN mentioned in the Digital Signature Certificate does not match. Please retry" or as shown in following image:-
Solution:
1. In case you are using Digital Signature Certificate (DSC) other than Individual Profile. Please check that you have updated the profile of the Authorized Signatory whose Digital Signature Certificate (DSC) is used.
OR
2. The PAN provided while processing the Digital Signature Certificate (DSC) is not correct.