Private airline Kingfisher Airlines has lost its permit to fly after a deadline to renew its suspended licence expired.
Aviation regulator - the Directorate General of Civil Aviation (DGCA) said on Tuesday that it has asked Kingfisher to furnish further details about the state of its finances.
"Kingfisher's flying permit has lapsed. They failed to provide additional details on the funding of operations," a foreign news agency quoted DGCA chief Arun Mishra, as saying.
A spokesman of the airline, Prakash Mirpuri, however, said in a statement: "Kingfisher is confident of securing approval from the regulator on the restart plan, licence approval and reinstatement of its operating permit."
Kingfisher, controlled by liquor baron Vijay Mallya, owes millions of dollars to banks, airports, fuel suppliers and its staff and has been looking for a foreign investor to inject fresh funds. (ANI)