lucknow immigration and security agencies went into a tizzy on friday evening after an alleged goofup by an airline which let 13 passengers leave chaudhary charan singh international airport without immigration clearancehowever after the immigration department alert the airline contacted the foreign nationals to return to lucknow airport for mandatory immigration clearanceaccording to official sources a total of 170 passengers landed at 625pm from bangkok at lucknow airport nine minutes later at 634pm another flight from bengaluru of the same airline landed at the airport with over 150 passengersthe ground crew who were supposed to ferry the passengers of international flight in the bus for terminal 1 and domestic passengers to terminal 2 made the goofupthe crew took passengers of an international flight to t2 where 13 passengers including a newly wedded couple returning from their honeymoon from bangkok one nri and a nineyearold minor left the airport for their respective destination in the state capital when the immigration team counted 13 less passengers in the passenger manifest provided to them they sent an alert to the airline and asked the whereabouts of the missing passengers the source saidthe airline then contacted all the 13 passengers and asked them to return with their luggage for immigration clearance the source saidanother source lambasted the airlines negligence and said the way 13 passengers of international flight were allowed to exit via t2 terminal without proper check shows the lack of professionalism in fact the passengers too should have voluntarily asked for immigration but somehow none did there was a family of three who were regular travellers to international destinations and they too left the airport without immigration and customs checks this could have been a dream come true for narcotics or gold smugglers to pass without a customs and immigration checka detailed probe is being done by the immigration department however it was immediately not clear what actions the airline took against its staff in the mattermeanwhile the lucknow airport spokesperson said we too are investigating the incident