The Airports Authority of India (AAI) issued a standard operating procedure (SOP) to airport operators on Wednesday for recommencement of domestic flights from May 25 onwards, saying Aarogya Setu app is not mandatory for children below 14 years of age.

"Passengers shall compulsorily walk through screening zone for thermal screening at a designated place in the city side before entering the terminal building," the AAI said in its SOP.

Airport operators must make appropriate arrangements for sanitisation of a passenger's baggage before his or her entry into the terminal building, said the SOP dated May 20.

The AAI manages more than 100 airports across the country. However, major airports like Delhi, Mumbai, Bengaluru and Hyderabad are managed by private companies.