There is no biharis N bhayyas,,,they r one n same,,,,becoz biharis along with whole of north Indians plus majority of Pakistanis r bhayya people(yes even kashmiris punjabis himanchalis n all).thr r many subtribes of the larger bhayya tribe,,,but utimately all r bhayya only.
Denying doesnt chnge the reality.
Dont believe me,,,,ask any other non bhayya aadmi.
Ps- sorry,,,majority pakistanis r arabs,turks,central asians,nordic n neolithic farmer descendents,,,,absolutely not darpok bhayya stock,,my mistake.