In wake of Air India mid-air urination incidents, the Directorate General of Civil Aviation (DGCA) on Friday issued an advisory to the head of operations of all scheduled airlines with regard to handling unruly passenger on board and respective responsibilities as per the regulations.The guidelines come in the wake of back-to-back two urination incidents on Air India flights last year.The DGCA said that it is observed that post holders, pilots and cabin crew members have failed to take appropriate actions regarding the incidents of unruly behaviour and inappropriate conduct by the passenger on board.In a statement, DGCA said, “In the recent past, DGCA has noticed a few incidents of unruly behaviour and inappropriate conduct by the passenger on board the aircraft during flight, wherein it is observed that post holders, pilots and cabin crew members have failed to take appropriate actions.”