The nepalese government knows most nepalese asylees (not bhutanese) are fake. That is why they took this step, I guess. :)
By the way after staying in america for 5+ years, don't these fake asylees get american citizenship? Or they become asylee in america for the rest of their life?
If they want to travel to Nepal when they are asylee in america, does US allow to do that? Or these fake asylees go to India and sneak into Nepal?
I think most asylees after getting greencard don't go to Nepal directly. They go through India their whole life I think. But now when these greencard holder fake asylees nepalese passport expire in 2015, they cannot even go to India.