New Delhi, Aug. 27 -- GMR Airports and Adani Airports are increasingly relying on passengers to shop, dine, and spend more at airports to drive their next phase of growth, as non-aeronautical businesses emerge as their primary revenue driver. Adani Airport is targeting a 70% contribution from non-aero businesses by 2030, from 56% currently, while GMR Airports expects its non-aero platform to grow at about 15% annually on a sustained basis.

The non-aero businesses, which include retail, duty-free, food and beverage, lounges, parking and commercial development, already account for about half of the two operators' income.

GMR Airports, the country's largest private airport operator, which manages Delhi, Hyderabad and Goa's Mopa airports in...