Migration is preventing development of UP/ Bihar . because their young generation is migrating in large numbers to other states, their own state is stagnating. because migrating at the earliest opportunity has become the norm, they don't expect their governments to deliver. their governments then are free to be lethargic as there is no public pressure to perform. hence they become strong advocates of migration. every bihari /UP railway minister, instead of building railways in their own states, are busy connecting their own states to other states, connecting mumbai to ranchi, pune to lucknow, meerut to nagpur etc, to facilitate migration.
if UP/ Bihar is to develop, their educated class has to stay back and pressurise their govt. this is what we maharashtrians do. we dont pack our bags after graduating and leave our state. we have state pride and that helps the state develop.