The occupancy has to be understood like: Vaishali: Avg count of 1AC Seat occupied at NDLS & CNB is 29 till train reaches LKO which raise to 30 for LKO onwards , BBK, Gonda, Basti till train reaches GKP!!
GKP onwards & DEOS remain 17 which drop to 6 past Sivan till BJU.
This illustrates huge Occupancy drip past GKP DEP till SV ARR (55% of GKP ARR Occupancy), SV DEP till BJU ARR (20% of GKP ARR Occupancy). Train runs quite empty in Bihar!!