- Stage 4 restrictions invoked in Delhi-NCR as pollution levels rise amid cold wave Hindustan Times
- GRAP-4 Restrictions Reimposed In Delhi As Air Quality Dips To ‘Severe+’ NDTV
- Air quality enters severe zone again The Times of India
- Delhi air quality drops to ‘severe’ again, pollution curbs under GRAP-IV back India Today
- GRAP III air pollution curbs re-imposed across Delhi-NCR — Know what’s allowed and what is not Mint
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