How u said abt the states in the US.. states are not mentioned as this is black state and this is white state and the next hispanic and so on.. but look what they are demanding are states based on caste..and u said there were  never any racial anarki in Kathmandu and entire Nepal...but when u declare a state with a caste system even though all castes reside in that state,sure there will arise racial ankari, and the  issue of communal feeling will automatically come up.