Can the email associated with dsc and mca website be different?

The director's personal email is associated both with DSC and MCA website. The DSC is already being used in MCA site. The company now wants to change that email in MCA to official email. However, the question is whether DSC will work after changing email in MCA site.

This was asked to DSC provider and they say email should be same for working of DSC. I am looking forward some reply in this regard. Thank you.