I guess we all need to do a root cause analysis on this. How could these people political mileage out of this issue?? The Biharis and UPwalas must be actually bad and hence the localites are all fed up of these folks. They should learn to honour the local culture and start living with localites in good terms, instead of creating their own kingdom of drinks, fighting etc. That should solve all the problems.
Actually wherever they are, be it Chandigarh, Delhi etc., these kinds of problems are surfacing time and again. Guess they also should work out to resolve in this direction.