It's going to happen anywhere, wherever the local youths will be berieved of the employment (for any reason). If the situation would have been opposite , same thekedari would have been done by the locals in Bihar, probably in worst way. SO such Thekedars are everywhere (DMK in TN, TDP in AP, Marxist in Bengal, etc. ) They do the same when their leader incites. Its wrong to beat poor guys but then it is wrong for poor guys to do the dadagiri and goondagiri also. And it is further wrong for the local leaders of UP and Bihari people to instigate them just to further their cause. If it happens like this ultimately poor people of both sides are going to suffer