DSC problem , filing itr3

Pradyut Bag (83 Points)

06 December 2021  
Dear sir,
I m facing a problem during filing ITR3 with DSC in Google chrom.
i.e. "Either you have not registered your DSC or the registered DSC has expired. Please update a valid digital signature certificate. If you have a DSC , Please register by navigating to profile -Register DSC.

PLEASE HELP ME , HOW TO DO.