NEW DELHI: Delhi's air quality saw a marginal improvement on Wednesday morning, with the overall Air Quality Index (AQI) recorded at 228 at 9 am, according to data from the Central Pollution Control Board (CPCB). For comparison, the national capital had recorded an AQI of 291 at 4 pm on November 4. Despite a slight improvement, Delhi’s air quality remained in the ‘poor’ category, affecting several areas across the city. More than 20,000 challans have been issued in Delhi under the Graded Response Action Plan (GRAP)-2 since its implementation on October 19, 2025, as part of measures to curb vehicular pollution. Speaking to ANI, additional police commissioner Satya Vir Katara said, "GRAP-2 has been in effect in Delhi since October 19, 2025. Under this, action is taken against pollut

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