Problem : I am trying to register Digital Signature Certificate (DSC) on Income Tax e-filing Website, but i am facing the error "Invalid Digital Signature Certificate. The trusted Parent Certificate could not be verified".
Solution: The Digital Signature Certificate (DSC) you are using must be Class 3 or Class 2 ( Discontinued w.e.f. 01.01.2021 ). Class 1 DSC will not be used on Income Tax Website. Buy Class 3 Digital Signature Online now !