The real problem is the corruption of UP and Bihar politicians. If they didnt eat up all the government funds and planned to create one or two mega cities like Bangalore,Kolkata or Hyderabad in their states with enough industries providing employment these people wouldnt have left their states. Why would they leave their homes and families if they are not compelled to ? Atleast now,people from UP and Bihar should put immense pressure on their respective governments to improve the infrastructure,industries and cities in their states. It's now or never.