Vibha Chawla never paid much attention to air pollution ... fit during the Diwali holidays late last year, she decided to act. Chawla, a 50-year-old resident of Delhi’s affluent Siri Fort ...

GRAP, a regulatory framework implemented during winter to tackle air pollution in Delhi-NCR, categorises air quality into four stages: Stage 1 (Poor, AQI 201-300), Stage 2 (Very Poor, AQI 301-400), ...

With air quality worsening again, stricter pollution curbs ... activated on December 16 after AQI levels hit 401. "The Sub-Committee observed that the AQI of Delhi is exhibiting an increasing ...