India, Nov. 22 -- Days after the Supreme Court allowed major revisions to the Graded Response Action Plan in the National Capital Region, some measures of Grap Stage 4 will be taken under Stage 3, the Commission for Air Quality Management (CAQM) said.

The short-term measures were proposed by the CAQM in response to Delhi's pollution crisis, with the changes shifting stricter measures to earlier stages.

This means that some Stage 4 advisories (when AQI is above 450) now applying at stage 3 (AQI 401-450), stage 3 measures at stage 2 (AQI 301-400), and stage 2 directives at Stage 1 (AQI 201-300).

The CAQM, while implementing the changes, cited the top court's November 19 observation wherein it asked the CAQM to take proactive actions base...