India, Jan. 13 -- The Airports Authority of India (AAI) on Tuesday announced air space restrictions over Delhi and surrounding areas for a specified duration daily from January 21 to 26, people familiar with the matter said.

In two NOTAMs, or Notice to Air Missions issued on Tuesday, AAI said no flights would be allowed to take off or land at Delhi's Indira Gandhi International Airport (IGIA), and other airports within a 300 km radius during the specified windows.

Citing the NOTAMs, an official said the Delhi airspace would be shut from 10am to 12:15pm between January 21 and January 25, during which no take-offs or landings would be permitted in and around Delhi.

On January 26, flight operations at Delhi airport would be suspended, fir...