A-I's outstanding dues stood at Rs 342.72 crore (Rs 3.42 billion) while those of the IA were Rs 89.88 crore (Rs 898 million) as on March 31 this year, Minister of State for Civil Aviation Shripad Yesso Naik said in a written answer.
The airlines have not paid the dues due to disputes regarding raising of bills for increased airport charges, licence fees and other facilities, he said.