Bihar and Uttarpradesh have more numder of parliamentary seats than any other two states combined together in India. Migration of North Indian people to Mumbai is due to get their food to live and not to act any films as claimed. Instead of coming to Mumbai, they can demand their leaders that more industries be established in their respective states thereby all the Son of the soil get their job there and there will be no necessity for migration to Mumbai.
when you migrate to any place you should be in postion to get a shelter atlest on rent if not owned. If you start living on streets and after some time claim the legistimate reight which is not in the interest of any State. One can notice the health situation in Mumbai where North Indians are thickly populated.
In my opinion, North Indian would have behaved in the same manner as of the people of Assam and Mahareshtra if their states are well deveolped like Mumbai where people from other state start migrating.