Saudi Arabia does not recognise Israel and lifting the airspace ban would reflect what appears to be thawing ties between Israel and the kingdom.
The park is part of the historic complex that surrounds Humayan's Tomb, the recently restored grave of a Mughal emperor that is widely seen as the inspiration for the Taj Mahal.
Many of Sri Lanka's fielders returned from lunch on the second day of the Test against India wearing masks amid visible haze at the Feroz Shah Kotla stadium.
A thick brown smog hung over Delhi with residents reporting smarting in the eyes and irritation in the nose and throat.
Residents of the sprawling Indian capital, which already ranks among the world's most polluted cities, complained of eyes watering and aggravated coughs.
New Delhi experiences suffocating smog every year around Diwali, when farmers in north India burn the stubble left behind after the harvest and revellers let off smoke-spewing firecrackers.
Thousands of children filled the Jawahar Lal Nehru Stadium to boost India's first major sporting event since the 2010 Commonwealth Games, which was marked by vast open spaces in stadiums.