Most chana chatpates, kera wala, plummers are Indian citizens who claim to be madeshes. Madeshes would rather stay in tarai and be poor than to come down to kathmandu and sell chana chatpates. It's the same thing like how you would not mind to spend thousands of dollars and come to usa and mop a gas station's floor but you would not work in a store in Nepal for somebody. Nepal is strongly suffering by Indian invasion, political, economic, cultural and even population invasion. Most of these indians claim to be madeshe from gaur, sarlahi etc to gain respect from you. They usually come from UP, Udessa, etc

However, it does not justify to torture an indian either. I am sure we would not like our Nepali brothers to get tortured in India and likewise we should not torture any poor people who are Nepali or Indian or anything. 

This is one great thing about America, ie we learn to respect everyone.