NEW DELHI: As post-Diwali smog blanketed Delhi, Aam Aadmi Party president Saurabh Bhardwaj on Monday accused the government of manipulating AQI data, asking for. According to the Central Pollution Control Board (CPCB), air quality deteriorated to the brink of the 'severe' category on Monday morning, with the AQI touching the 400 mark. Smog reduced visibility in several parts of the city.