GRAP-III invoked in Delhi-NCR as air quality worsens ahead of Diwali

GRAP Stage III is the third level of the Graded Response Action Plan for dealing with worsening air pollution. It activates a nine-point set of restrictions across Delhi-NCR. The plan targets major pollution sources, including construction dust, vehicle emissions and industrial activity. It also affects schools, offices and daily travel.

The Commission for Air Quality Management, or CAQM, invoked Stage III through its Sub-Committee on GRAP. The decision was announced on November 6, days before Diwali. Restrictions include stopping many dust-generating construction activities, closing stone crushers and mines, and limiting certain vehicles. Classes up to Class V may shift to hybrid learning.

The measure was described as precautionary because air quality was worsening. It is intended to slow further pollution growth during a period when emissions can rise. Residents have been urged to use public transport, share rides, walk or cycle, avoid coal and wood for heating, and work from home where possible.

Stage III restricts many construction and demolition activities that produce dust across the NCR. The listed activities include excavation, piling, demolition, brickwork, road construction, major welding, painting and polishing. Moving construction materials on unpaved roads is also restricted. Stone crushers and mining activities must close across the NCR.

Vehicle controls apply to BS-III petrol and BS-IV diesel four-wheelers in Delhi and Gurugram, Faridabad, Ghaziabad and Gautam Buddha Nagar. Delhi also restricts certain BS-IV diesel medium goods vehicles registered there, plus BS-IV diesel light commercial vehicles registered outside Delhi. Vehicles serving essential needs are exempt.

The article describes industrial operations as part of the broader restrictions, but it does not list every industrial activity affected. The stated purpose is to reduce dust and emissions quickly. These steps can slow construction, limit freight movement and reduce pollution from high-emitting vehicles while Stage III remains active.

GRAP Stage III applies across Delhi-NCR, meaning the action plan covers the National Capital Region rather than Delhi alone. The article does not provide the NCR’s area or population, so its exact physical size cannot be stated from the supplied text. Its reach includes construction, mining, vehicles, schools and offices in the region.

Vehicle restrictions are specified for Delhi and four districts: Gurugram, Faridabad, Ghaziabad and Gautam Buddha Nagar. BS-III petrol and BS-IV diesel four-wheelers are covered in those places. Delhi has additional rules for certain BS-IV diesel medium goods vehicles registered in the city and BS-IV diesel light commercial vehicles registered outside Delhi.

This regional approach matters because pollution and traffic cross administrative borders. Coordinated restrictions can address sources beyond Delhi itself. The article does not identify different rules for every NCR district, so the listed vehicle locations should not be treated as the complete list of all Stage III measures.

Commuters may need to switch vehicles, use public transport, share rides, walk or cycle for shorter journeys. Owners of restricted BS-III petrol or BS-IV diesel vehicles may be unable to drive in covered areas. Essential-service and essential-commodity vehicles are exempt. The measures may also reduce traffic and emissions.

Construction workers could see work paused when their jobs involve excavation, demolition, brickwork, road construction, painting, polishing or other listed activities. Projects using unpaved material routes may also be affected. Schools must conduct classes up to Class V in hybrid mode where online learning is feasible. Students and guardians can choose the online option.

NCR governments and Delhi may decide whether public, municipal and private offices operate with 50 per cent staff, with others working from home. The Central Government may separately decide on remote work in its offices. These consequences depend on implementation decisions and the feasibility of online or home-based work.

Stage III does not stop every construction project. Work connected with essential infrastructure may continue if it follows pollution-control norms. The listed projects include railways, metros, airports, hospitals, national security projects, highways, flyovers, power transmission networks, sewage treatment plants and water supply projects.

This exemption works by separating essential infrastructure from other dust-generating work. A metro or hospital project can proceed, but it remains subject to pollution-control requirements. The article does not describe those requirements in detail. The exemption therefore permits necessary construction without removing the wider obligation to control pollution.

Vehicle restrictions also have an essential-needs exception. Vehicles carrying essential commodities or providing essential services are exempted from the stated limits. The article does not list every qualifying commodity, service or vehicle type. These exemptions are designed to preserve critical supplies and services while broader restrictions reduce emissions and dust during worsening air quality.

The Commission for Air Quality Management invoked Stage III through its Sub-Committee on GRAP. The commission announced the decision on November 6. The CAQM also issued directions connected with offices and urged residents to reduce travel, use public transport and work from home where possible.

Delhi and NCR state governments are responsible for decisions on hybrid classes up to Class V. They may also decide whether public, municipal and private offices use 50 per cent staffing. The Central Government may separately decide on work from home for its own offices. These bodies determine how parts of the plan operate.

District authorities enforce local measures. In Gurugram, the district administration acted under Deputy Commissioner Uttam Singh, registering FIRs in 41 illegal-firecracker cases and seizing stored firecrackers. Authorities also issued notices over work-from-home violations. Enforcement measures will continue, but the article does not identify a separate body that can expand GRAP beyond the CAQM process.

Vehicle exhaust releases gases and fine particles, especially when many high-emitting vehicles travel together. Construction activities disturb soil and materials, creating dust that can remain suspended and enter people’s airways. Industrial operations can also release smoke, gases and particles. These sources combine to worsen urban air quality.

Coal and wood used for heating produce smoke and fine particles because they burn with emissions. Firecrackers release particles and gases in a short period, creating sharp pollution increases. Construction material moving on unpaved roads can add more dust. These mechanisms are established air-pollution science; the article itself mainly identifies the activities and fuels as pollution concerns.

Stage III responds by limiting selected vehicles, stopping many dust-generating activities, closing stone crushers and mines, and urging residents to avoid coal and wood. Gurugram is also acting against illegal firecrackers. Continued enforcement matters because the article says measures will continue to protect public health as Diwali approaches.