Over 700 passengers inside Delhi Indira Gandhi International Airport and 200 of their relatives outside Terminal-3 staged a protest late Thursday night when, hours after reaching the airport, German carrier Lufthansa informed that it is cancelling almost all passenger and cargo flights on Friday due to the planned strike action by the pilots. The flights have been cancelled from its two biggest hubs, Frankfurt and Munich. The protesters were pacified by the CISF and Delhi Police after being assured that efforts were being made to make alternate arrangements for the passengers by the airlines company.