Amid Delhi's Air Quality Index (AQI) at 'severe' level for two consecutive days, the Delhi government decided to implement more stringent pollution control measures under Stage 3 of the Graded Response Action Plan (GRAP).

Delhi AQI remains at 'severe' but the environment minster recently said that GRAP 3 measures do not need to be imposed as of now.

Delhi and its neighbouring cities are experiencing pollution levels that are at least 30-35 times the safe limit recommended by the World Health Organization (WHO). Every year, De

Delhi overtook Pakistan ’s Lahore as the world’s most polluted city in Swiss group IQAir’s live rankings, with an air quality index (AQI) score of more than 1,000, which is considered “hazardous”, but India ’s pollution authority said the AQI was around 350.