i think violence is not proper way,but it should be understand by north leaders that they themself had failed to achieve progress of their state.If they had created lot of opportunity in their states there will be no need to any bhaiya to come to bombay. also goverment should think why such a issue has arised---Because of over population-poverty. Mumbai is always seen as a land of bread for all but their should be any limit other wise all law and order and ever goverment system will fail . it is the biggest failure of North indian leaders who failed to progrss their states in all respect.