India’s airline regulator has given Kingfisher Airlines, which has been grounded since Sept. 30 by an employee strike demanding months of unpaid wages, two weeks to prove it should retain its operating certificate. The Directorate General of Civil Aviation (DGCA) Friday issued a warning to the airline “asking why its permit should not be canceled or suspended, as the airline has failed to establish a safe, efficient and reliable service,” a government official tells Aviation Week.

India’s government has granted international airport status to facilities in Lucknow, Varanasi in northern India and Mangalore, Tiruchirapalli and Coimbatore in the South. “All these airports are capable of handling medium capacity-range, long-range type aircraft and are also equipped with facilities for night operations,” says Finance Minister P Chidambram.

Indian carrier Kingfisher Airlines has canceled all operations following a strike by some of its employees, who say the privately owned carrier has not paid their salaries since March. The airline has told civil aviation authorities that it will restart operations in the next few days, after it has settled this labor dispute. An airline spokesman says management will “review the situation on Oct. 4 or the day on which the strike is called off, whichever is earlier.” The airline has halted the sale of tickets until then, he adds.