Delhi-NCR's air quality has significantly deteriorated post-Diwali, falling into the 'Poor' category, according to the Central Pollution Control Board (CPCB). Despite the AAP government's complete ban on firecrackers and the 'Diya Jalao, Patakhe nahi' campaign, visuals from various parts of Delhi, including Lodhi Road and Rajghat, showed fireworks lighting up the night sky on Sunday.