The sub-committee of CAQM revoked the Stage-III of GRAP in view of the forecasts by the IMD/IITM for meteorological conditions and air quality index of Delhi, officials said. According to the forecast, the AQI of Delhi has been progressively improving and has been recorded as 346 at 4:O0 PM which is about 55 AQI points below the threshold for invoking the GRAP Stage-III actions (Delhi AQI 401-450) and there is a likelihood of sustaining the improvement in AQI.