I had a bitter experience to travel to Kolkata from Delhi. After Mugalsarai wehen passing Bihar border, Some people stopped train. I was in AC3tier. 3person entire Ac and fetchdown us and the 3 sited .I said i hav a legal ticket how can they do that , then one of 3 siad: "yeh bihar hay na, hum yehay ki Rajja haye, chik na saye kono faidda nahin na haye, ticket babu nahin na ahya ga"