PESHAWAR  - At least seven passengers were left behind as PIA Peshawar-Karachi flight departed an hour earlier than the scheduled time.  According to the details, PIA flight PK-351 was schedule to leave Peshawar for Karachi at 8:30 am on Monday.  However, the airline left 50 minutes before the scheduled time of departure. MD PIA has claimed that due to planes mishaps  the schedule of flights was disturbed. and passengers were informed about the change in the schedule.  He said it was necessary to reschedule all flights and some adjustments have been made. However, the passengers who missed the flight denied the PIA claims stating that they were not informed in advance regarding changed schedule of flight.