Behind all this gossip pepole forget a couple of facts 1. Biharis are ill treated in almost every part of the country (54 were recently slained in Assam) 2. The maximum labor migrants are from UP/Bihar!!!! reasons - High population No law and order Most corrupt and illeterate states ugly cast based politics No industries willing to start the plant/office in these states due to above reason. True solution to this core issue is to have development all across the country. Each state should have 3-6 big cities with good number of industries/corporates. Then pepole dont need to migrate elsewhere and these problems will automatically be solved (provided we control the population like china did else whatever solution we adapt will fail)