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

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…