I'm also facing problem of EPS (Electronic Power Steering) fault light.
But during self if I rotate steering with my left hand then this light is gone and I got EPS working.
Being site engineer I'm not getting to get it fixed from Isb/Pindi. Mine issue is either Loose connection of sensor or relay.
you may same issue.
what was error code when u got ur car scanned from Mechanic?
have you tired to reset senspors by removing battery connection for 10, 15 mins?