NEW DELHI, April 1 -- The Airports Authority of India's (AAI) profitability is increasingly being driven by a small set of privatized airports, even as most of the airports it runs continue to make losses, raising questions about the sustainability of its earnings as more assets are slated for privatization.

Income from six airports operated under public-private partnership (PPP) agreements accounted for more than 30% of AAI's net profit in the year ended March 2025, according to its annual report released in February.

At the same time, the bulk of its own network remains under strain. An estimated 91, or about 75%, of the 122 airports owned by AAI reported losses of Rs.1,600 crore, while the remaining 31 airports earned a profit of Rs....