FILE PHOTO: An Air India Airbus A320-200 aircraft takes off as an IndiGo Airlines aircraft waits for clearance at the Sardar Vallabhbhai Patel International Airport in Ahmedabad, India, July 7, 2017. Picture taken July 7, 2017./File Photo
FILE PHOTO: An Air India Airbus A320-200 aircraft takes off as an IndiGo Airlines aircraft waits for clearance at the Sardar Vallabhbhai Patel International Airport in Ahmedabad, India, July 7, 2017. Picture taken July 7, 2017./File Photo