Deepavali fireworks significantly deteriorated Delhi's air quality, with multiple cities recording 'very poor' pollution levels post-celebration.

Delhi's air quality worsens as residents defy Supreme Court ban on firecrackers, leading to 'very poor' and 'severe' pollution levels.

NEW DELHI: Thick smog blanketed India’s capital on Tuesday, a day after millions celebrated the Hindu festival of Diwali with fireworks that sent air pollution levels soaring to…