Resolution:
When a user is created with a custom role, that user will have all the previlages that a worksupervisor role will have.
So to prevent the user seeing some functionalities/menus/buttons it is required that there is an entry in the role2funcmap table(of database). Every function entry in the role2funcmap is a negation of that function. It means that if you have an entry that function will not be available for that role.

Insert the function id in to the role2funcmap table where the roleid=(id from the role table where enterpriseid= id of the enterprise).