While trying to add my demat account in the profile section, I am encountering the following error 
 
EF-WS-DMT-ERR-10002
 
Immediately after adding my demat account, I have received an e mail citing failure due to invalid DSC and asking me to use the registered DSC.
 
However, I may add that for validation, the portal does not seek either EVC or DSC (which it does for adding Bank accounts).