Hi Rahul

Removing the permission to View block is the correct way to hide the block from a role for a course.

There doesn't appear to be a permission to view a block for a higher level.

I tried adding the block to the front page and deleting the learner permission to view 

I then chose for the block to appear throughout the site but the block showed to the learner role.  I was hoping this block to be duplicated throughout the site including the same permissions)

I can't think of another way to do this but there possibly could be.

Regards