The addition of plane ticketing underscores Amazon’s growing interest in expanding its payment service in India, which is both one of its fastest-growing markets and a country it uses to test new ideas.

Amazon’s interest in a flight-ticketing option in India should also help its partner ClearTrip gain a larger foothold in the nation. The company competes with giant MakeMyTrip, Booking.com and Google.

The push comes as many local companies in India and those that operate in the nation begin to mold their apps into so-called super apps.