1. When you click on "Select Certificate" and DSC is not selected while using it on the MCA21, or 'Select Certificate' button not working on MCA website or Unable to Register/Select Digital Signature Certificate(DSC) on MCA website

2. When you use DSC on adobe reader or any PDF Form and it shows an error like The Windows Cryptographic Service Provider reported an error: An Internal error has been detected, but the source is unknown. Error code: 2148532244 or Cryptographic Error while signing PDF Form/File.

3. When you use Digital Signature Certificate (DSC) on adobe reader or any PDF Form and it shows an error like The Windows Cryptographic Service Provider reported an error: Keyset does not exist. Error code: 2148073494

4. When user uploading MCA PDF form on MCA website and error is displayed "The Certifying Authority of the DSC that you are using is not trusted. Please use the DSC issued by one of the trusted Certifying Authorities mentioned in the MCA portal"