Problem :
When user using Digital Signature Certificate (DSC) on ITD e-filing Management Utility and it shows an error "Please enter valid Digital Signature Certificate (DSC) PAN as shown in the Folllowing image:

Solution:
1: You are not entering the correct PAN
OR
2: PAN provided while processing the Digital Signature Certificate(DSC) is not correct.
User are requested contact to their DSC Provider.