we never go deep into the roots of the problem. the real problem of the Mumbai is the overcrowdedness of the city and that is due to the migrants from UP and Bihar. this overcrowdedness of the city is an ongoing process which causes inconvinience to old inhabitants of mumbai including all the people from across all the state.so something should be done to discourage the constant flow of the people from other states. Definitely the people of particular state should not be targetted under any circumstances