
The Graded Response Action Plan (GRAP) -- a set of emergency measures to control air pollution in the Delhi-NCR region during winter -- has come into effect earlier than the usual date of October 1, according to officials.
The Commission for Air Quality Management, an autonomous body responsible for preparing the strategy to improve air quality in Delhi and nearby areas, said on Wednesday that polluting buses from NCR states will not be allowed to enter Delhi if the city's air quality index (AQI) reaches Stage III -- 'Severe' (AQI between 401 and 450).
Exceptions will be made for CNG, BS VI, and electric buses.
The restrictions will not apply to buses or tempo travellers with an all-India tourist permit.
GRAP is categorised into four stages based on Delhi's air quality: Stage I -- 'Poor' (AQI 201-300); Stage II -- 'Very Poor' (AQI 301-400); Stage III -- 'Severe' (AQI 401-450); and Stage IV -- 'Severe Plus' (AQI >450).
On Wednesday, Delhi's AQI was 115 (Moderate).
(Except for the headline, this story has not been edited by NDTV staff and is published from a syndicated feed.)
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Edited by Abhinav Singh9,000 Challans, 500 Inspections In 24 Hours As Delhi Steps Up Pollution Enforcement
Reported by Ishika Verma"Visible Change Needed": Delhi Minister Pulls Up Civic Body Over Pollution
Reported by Ishika VermaA video going viral on social media has shown the extent of the pollution crisis, where Delhi's skyline is barely visible from an airplane window.
Delhi authorities carried out over 500 inspections and issued more than 9,000 vehicular challans in the past 24 hours as part of ongoing efforts to control pollution. As per official data, the city's Air Quality Index (AQI) stood at 202 on Wednesday.
Amid Delhi's air quality concerns, Urban Development Minister Ashish Sood on Wednesday pulled up the Municipal Corporation of Delhi (MCD) for what he called a lack of "visible change" on the ground in curbing pollution.
As air quality across Delhi and the National Capital Region (NCR) worsens, a hidden health concern is emerging - a surge in vitamin D deficiency. With thick smog cutting off sunlight, doctors are now urging residents to take supplements.
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.
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