New Delhi: Concerned over the deteriorating condition of SpiceJet and large-scale flight cancellations, aviation regulator DGCA today withdrew 186 of its slots and asked it to clear salary dues of all its employees in the next ten days.

After reviewing the situation facing the no-frill carrier, DGCA chief Prabhat Kumar took a series of decisions, including asking the airline to file a "convincing schedule" by December 15 to clear its over Rs 1,500 crore dues to various vendors including airports and oil companies, official sources said.