New Delhi: Akshardham Temple shrouded in a thick layer of smog, a day after Diwali celebrations in New Delhi, Friday, Nov. 5, 2021. (PTI Photo/Manvender Vashist)New Delhi: Low visibility due to a thick layer of smog, a day after Diwali celebrations in New Delhi, Friday, Nov. 5, 2021. (PTI Photo/Manvender Vashist)New Delhi: Vehicles ply amid low visibility due to a thick layer of smog, a day after Diwali celebrations in New Delhi, Friday, Nov. 5, 2021. (PTI Photo/Manvender Vashist)New Delhi: Vehicles ply amid low visibility due to a thick layer of smog, a day after Diwali celebrations in New Delhi, Friday, Nov. 5, 2021. (PTI Photo/Manvender Vashist)New Delhi: Vehicles ply amid low visibility due to a thick layer of smog, a day after Diwali celebrations in New Delhi, Friday, Nov. 5, 2021. (PTI Photo/Manvender Vashist)New Delhi: Birds perch on street light poles amid low visibility due to a thick layer of smog, a day after Diwali celebrations in New Delhi, Friday, Nov. 5, 2021. (PTI Photo/Manvender Vashist)New Delhi: A man rides a bicycle in front of the historic Red Fort, shrouded in smog post Diwali celebrations in New Delhi, Friday, Nov. 5, 2021. (PTI Photo/Manvender Vashist)Ghaziabad: Low visibility due to a thick layer of smog post Diwali celebrations, in Ghaziabad, Friday, Nov. 5, 2021. (PTI Photo)