The order to shut down eight airports over the northern states of Jammua and Kashmir, Punjab and Himachal Pradesh has been withdrawn. Flight operations have already resumed from some airports, including Jammu. The order for shut down was issued a short while ago amid an escalation of hostilities with Pakistan. Sources had said the entire airspace north of Delhi has to be vacated. The list of airports included Amritsar, Jammu, Srinagar and Leh, Kullu-Manali, Kangra, Shimla and Pathankot.