SF Prep Notes

CAQM revises GRAP, moves measures to earlier stages for Delhi–NCR

The Commission for Air Quality Management in NCR and Adjoining Areas (CAQM) revised the Graded Response Action Plan (GRAP) for the entire NCR on 21 November 2025, moving several measures to earlier stages to make it more stringent.

Summary

Under the revised GRAP, measures such as uninterrupted power supply to discourage DG sets, traffic synchronisation and augmented CNG/electric bus and metro services move from Stage II to Stage I ('Poor', Delhi AQI 201–300). Staggered timings for public offices move from Stage III to Stage II ('Very Poor', AQI 301–400). The decision on allowing public, municipal and private offices to work at 50% strength with the rest working from home moves from Stage IV to Stage III ('Severe', AQI 401–450).

Key facts

Body
CAQM
Revised on
21 Nov 2025 (consultation 20 Nov)
Stage I (AQI 201–300)
Now includes power supply, traffic, public-transport measures from Stage II
Stage II (AQI 301–400)
Now includes staggered office timings from Stage III
Stage III (AQI 401–450)
Now includes 50% office strength / WFH decision from Stage IV

Practice MCQs 3 questions

Q1

Under GRAP, Stage II ('Very Poor' air quality) applies when Delhi's AQI is in which range?

Show answer

Correct answer: B — 301–400

Stage II ('Very Poor') covers Delhi AQI 301–400, as listed in the revised GRAP of 21 November 2025.

Q2 Advanced

In the GRAP revision of 21 November 2025, the decision on allowing offices to work at 50% strength with the rest working from home was moved to which stage?

Show answer

Correct answer: C — Stage III

This measure was moved from Stage IV to Stage III ('Severe', Delhi AQI 401–450).

Q3

Which body revised the Graded Response Action Plan (GRAP) for the NCR on 21 November 2025?

Show answer

Correct answer: A — Commission for Air Quality Management in NCR and Adjoining Areas

The CAQM revised GRAP for the entire NCR on 21 November 2025.

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