Chhapra got that many trains just because of being NER it became BSB terminal but trains worsened BSB being one of the most if not the most holy city, one of the largest city of UP and whole caterer of Purvanchal deserved some premium trains but what it has is just some Express/SF trains that too extended here and there by NR I guess in the whole North India any of the city is that much money maker BSB,Bcy Ddu or Banaras except (Patna or Lucknow that too an exception do they give more)