Air quality dips on a Hazy Day: Indian married Hindu women perform rituals on Karwa Chauth festival as toxic smog covers the national capital region's skyline and air quality deteriorates to the ''severe'' category at Noida, UP on the outskirts of New Delhi, India, on, Nov. 04, 2020. Karwa Chauth is a 1-day festival celebrated by Hindu women from the Indian Subcontinent on the fourth day after purnima in the month of Kartika. Photo Credit: Indian Photo Agency (InPA)