Lalu, Nitish and Paswan for the last 10-15 years have ensured that Railways (which is a pan-India organisation) always recruits a majority for any kind of Railways jobs for Biharis. Dont forget the resentment felt in Bangalore about this too when Lalu went there.
Mark my words, there will be similar resentment all over the country in near future.
I stay in Mumbai and most criminals who work as servants or who rob or kill for almost nothing are from UP/Bihar. Come and pick up the crime page of a Mumbai daily and make a count of people from UP/Bihar state.