Which of the following statements about the Graded Response Action Plan (GRAP) for Delhi NCR is correct?

Stage‑I of GRAP was indeed activated on 19 May 2026. The other options are factually wrong. Relevant for GS3.

Explain the role of the Commission for Air Quality Management (CAQM) in implementing the Graded Response Action Plan in the NCR.

Discuss CAQM’s monitoring function, its sub‑committee’s power to invoke or revoke GRAP stages, and its coordination with MoEFCC, CPCB and state bodies. Relevant for GS3.

Assess the effectiveness of multi‑stage pollution control mechanisms like GRAP in managing air quality in Indian megacities.

Evaluate strengths (timely response, clear triggers, federal coordination) and weaknesses (implementation gaps, reliance on weather, economic impact). Cite Delhi’s recent revocation of Stage‑I as a case study. Relevant for GS3.

CAQM Revokes Stage‑I of GRAP for NCR as De...

On 29 May 2026, the CAQM Sub‑Committee revoked Stage‑I of the Graded Response Action Plan for the NCR after Delhi’s AQI fell from 207 to 123, entering the ‘Moderate’ category. The move underscores the coordinated role of central and state agencies in air‑quality management and highlights the importance of weather‑driven improvements for sustaining cleaner air.

Overview The CAQM Sub‑Committee has withdrawn all actions under GRAP in the NCR . The decision follows a sharp fall in Delhi’s AQI from 207 on 28 May 2026 to 123 on 29 May 2026, moving the city into the ‘Moderate’ band. Key Developments 29 May 2026: CAQM revokes Stage‑I of GRAP across the entire NCR with immediate effect. Delhi’s daily average AQI dropped to 123 (moderate) after strong winds and light rain. IMD/IITM forecasts predict the AQI will stay in the ‘Moderate’ range for the next few days. The Sub‑Committee advises all state and Delhi agencies to strictly implement existing statutory directions, advisories, and orders issued by the MoEFCC , CPCB , and respective State Pollution Control Boards and DPCC . Important Facts The CAQM had earlier invoked Stage‑I of GRAP on 19 May 2026 when AQI trends began rising. Stage‑I typically includes measures such as restricting construction activities, limiting diesel generator use, and curbing vehicular emissions. The present revocation does not cancel these rules; it merely suspends the emergency actions while the air quality remains acceptable. Weather conditions played a decisive role: strong winds dispersed pollutants, and light rain helped wash them out of the atmosphere, leading to the observed AQI improvement. Relevance for UPSC Understanding the GRAP mechanism is essential for GS‑III (Environment) as it illustrates how the government operationalises air‑quality management through a graded response. The coordination between central ministries ( MoEFCC ), statutory bodies ( CPCB ), and state agencies reflects the federal structure discussed in GS‑II (Polity). Moreover, the role of meteorological agencies like IMD and IITM underscores the importance of integrating climate data into policy decisions, a topic relevant to both GS‑III and GS‑IV (Ethics & Governance of Science). Way Forward Maintain strict compliance with existing pollution‑control norms to prevent a relapse into ‘Poor’ AQI levels. Continue real‑time monitoring by CAQM and share forecasts from IMD/IITM with all stakeholders. Prepare to re‑activate Stage‑I or higher stages of GRAP if AQI trends reverse. Promote public awareness about the impact of weather on air quality and encourage voluntary reduction of emissions during high‑pollution periods. By staying vigilant, the government aims to sustain the moderate air‑quality status and protect public health in the densely populated NCR.

<h2>Overview</h2> <p>The <span class="key-term" data-definition="Commission for Air Quality Management — statutory body that monitors and regulates air quality in the National Capital Region (GS3: Environment)">CAQM</span> Sub‑Committee has withdrawn all actions under <span class="key-term" data-definition="Graded Response Action Plan — a multi‑stage framework that triggers specific pollution‑control measures when air quality deteriorates (GS3: Environment)">GRAP</span> in the <span class="key-term" data-definition="National Capital Region — the metropolitan area that includes Delhi and surrounding districts of neighbouring states (GS2: Polity)">NCR</span>. The decision follows a sharp fall in Delhi’s <span class="key-term" data-definition="Air Quality Index — a composite indicator that reflects the concentration of major pollutants; lower values mean cleaner air (GS3: Environment)">AQI</span> from 207 on 28 May 2026 to 123 on 29 May 2026, moving the city into the ‘Moderate’ band.</p> <h3>Key Developments</h3> <ul> <li><strong>29 May 2026:</strong> CAQM revokes Stage‑I of GRAP across the entire NCR with immediate effect.</li> <li>Delhi’s daily average AQI dropped to <strong>123</strong> (moderate) after strong winds and light rain.</li> <li>IMD/IITM forecasts predict the AQI will stay in the ‘Moderate’ range for the next few days.</li> <li>The Sub‑Committee advises all state and Delhi agencies to strictly implement existing statutory directions, advisories, and orders issued by the <span class="key-term" data-definition="Ministry of Environment, Forest and Climate Change — central ministry responsible for environmental policy, climate action and forest management (GS3: Environment)">MoEFCC</span>, <span class="key-term" data-definition="Central Pollution Control Board — apex body under MoEFCC that formulates pollution control standards and monitors compliance (GS3: Environment)">CPCB</span>, and respective State Pollution Control Boards and <span class="key-term" data-definition="Delhi Pollution Control Committee — agency that enforces pollution control measures within Delhi (GS3: Environment)">DPCC</span>.</li> </ul> <h3>Important Facts</h3> <p>The CAQM had earlier invoked Stage‑I of GRAP on <strong>19 May 2026</strong> when AQI trends began rising. Stage‑I typically includes measures such as restricting construction activities, limiting diesel generator use, and curbing vehicular emissions. The present revocation does not cancel these rules; it merely suspends the emergency actions while the air quality remains acceptable.</p> <p>Weather conditions played a decisive role: strong winds dispersed pollutants, and light rain helped wash them out of the atmosphere, leading to the observed AQI improvement.</p> <h3>Relevance for UPSC</h3> <p>Understanding the GRAP mechanism is essential for GS‑III (Environment) as it illustrates how the government operationalises air‑quality management through a graded response. The coordination between central ministries (<span class="key-term" data-definition="MoEFCC — see above">MoEFCC</span>), statutory bodies (<span class="key-term" data-definition="CPCB — see above">CPCB</span>), and state agencies reflects the federal structure discussed in GS‑II (Polity). Moreover, the role of meteorological agencies like IMD and IITM underscores the importance of integrating climate data into policy decisions, a topic relevant to both GS‑III and GS‑IV (Ethics & Governance of Science).</p> <h3>Way Forward</h3> <ul> <li>Maintain strict compliance with existing pollution‑control norms to prevent a relapse into ‘Poor’ AQI levels.</li> <li>Continue real‑time monitoring by CAQM and share forecasts from IMD/IITM with all stakeholders.</li> <li>Prepare to re‑activate Stage‑I or higher stages of GRAP if AQI trends reverse.</li> <li>Promote public awareness about the impact of weather on air quality and encourage voluntary reduction of emissions during high‑pollution periods.</li> </ul> <p>By staying vigilant, the government aims to sustain the moderate air‑quality status and protect public health in the densely populated NCR.</p>

Quick Reference

Key Insight

CAQM lifts GRAP Stage‑I in NCR as AQI falls to moderate, showing policy responsiveness

Key Facts

CAQM revoked Stage‑I of the Graded Response Action Plan (GRAP) for the entire NCR on 29 May 2026.
Delhi’s daily average Air Quality Index (AQI) dropped from 207 on 28 May 2026 to 123 on 29 May 2026, moving to the ‘Moderate’ band.
GRAP Stage‑I includes restrictions on construction activities, diesel generators and vehicular emissions.
Strong winds and light rain dispersed pollutants and washed them out, causing the AQI improvement.
IMD and IITM forecast the AQI will stay in the ‘Moderate’ range for the next few days.
The CAQM sub‑committee advised strict compliance with directions of MoEFCC, CPCB, State Pollution Control Boards and DPCC.
GRAP was first activated on 19 May 2026 when AQI trends began rising.

Background

GRAP is a multi‑stage framework that triggers specific pollution‑control measures when air quality deteriorates. It links environmental monitoring (CAQM, CPCB) with governance (MoEFCC, state agencies) and illustrates how weather data (IMD, IITM) inform policy actions.

UPSC Syllabus

Essay — Environment and Sustainability
GS3 — Conservation, environmental pollution and degradation
Prelims_GS — Environmental Issues and Climate Change

Mains Angle

In a Mains answer, candidates can discuss GRAP as a tool of environmental governance, linking it to federal coordination and policy responsiveness. Likely GS‑III question: evaluate the strengths and limitations of graded response mechanisms for air‑quality management.

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Key Facts

Background & Context

UPSC Syllabus Connections

Mains Answer Angle

Practice Questions

Prelims MCQ

Mains Short Answer

Mains Essay

Quick Reference

Key Insight

Key Facts

Background

UPSC Syllabus

Mains Angle

CAQM Revokes Stage‑I of GRAP for NCR as Delhi’s AQI Improves to ‘Moderate’ Level

Overview

Full Article

Key Facts

Background & Context

UPSC Syllabus Connections

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Analysis

Practice Questions

Prelims MCQ

Mains Short Answer

Mains Essay

Quick Reference

Key Insight

Key Facts

Background

UPSC Syllabus

Mains Angle