Hello ChiragM,
Okay, well, the Employee Role is a deliberately cut-down role. I don't think that the Default "Function Access" grants ability to process Workflow Tasks. Change Orders are "View" and Workflows are "None" on my system.
I'm thinking that if users are Approving Tasks, then another Role may be appropriate, and perhaps a cut down version of the Analyst forms.
However, if you do want to modify the Employee Role for this, then that's okay, but there will be some compromises in terms of access to full features/navigation, because it is a cut down view.
Changes to the way this works could be approached by potential customisation (I have no comments on how but suspect it is not the way to go) or by logging an Idea on this Community for an enhancement and linking back to this thread.
Because the way you're using this depends on the setup, I suggest opening a CA Support issue so a Support Engineer can have a look via a remote session. It will be easier than sending a lot of screenshots to this thread, although of course we'll still be interested in following this.
Comments welcome on using SDM in this manner: ie Employee Approving Classic Workflow Tasks, especially if your site does something similar.
Thanks, Kyle_R.