FILE - Children play with firecrackers during Diwali celebrations in New Delhi, India, on Nov. 4, 2021. (AP Photo/Altaf Qadri, File)

A thick layer of smog hangs over the skyline of Delhi ahead of Diwali festival in New Delhi, India, Tuesday, Oct. 29, 2024. (AP Photo/Shonal Ganguly)

Fishermen row their boat amidst morning smog in the river Yamuna as toxic foam floats in the river ahead of Diwali festival in New Delhi, India, Tuesday, Oct. 29, 2024. (AP Photo/Manish Swarup)

Gyaanchand Goyal sits in his shop in New Delhi, India, Saturday, Oct. 26, 2024. Goyal said that the ban on firecrackers has served as a disadvantage to sellers like him and affected their biggest source of income during the festive season. (AP Photo/Verda Subzwari)

Commuters drive amidst morning smog ahead of Diwali festival in New Delhi, India, Tuesday, Oct. 29, 2024. (AP Photo/Manish Swarup)