Citing readings from multiple independent air quality monitoring platforms, Saurabh Bhardwaj alleged that the government's official figures did not reflect the actual pollution levels and accused. Why does CPCB report an AQI of around 370 while private platforms show nearly 1,000? Explained: AQI calculation, pollution levels and GRAP rules. Delhi’s air quality worsens to Severe with AQI 404-406 in parts of Delhi after Deepavali, as GRAP Stage III active.