When we start such thread we should be aware same allegation can be applied to so many pahades coming from Burma, darjeling, Bhutan...etc. Ideally Citizenship has nothing to do with caste, creed, and race. It is just an output of law of land. Madhese people that you are pointing at might have ancestors that were living in Nepal for last 100 years or more. That way they might have citizenship in category 'Banshaj"