Indian carriers now have the second-largest order book for new planes, with over a 6 percent share of the industry backlog, behind only the U.S., according to a recent Barclays report. Budget carrier IndiGo’s aircraft order for 500 Airbus A320neofamily planes – likely worth $50 billion – has eclipsed Air India’s 470 aircraft order made in February. When added to IndiGo’s substantial backlog totaling 480 jets, questions will arise whether the Indian market can accommodate this number of aircraft, noted IBA, an aviation market intelligence company and consultancy.