

Context:
Key Findings of the Study (2015–2025):
- Southern & western cities (Chennai, Mumbai, Bengaluru, Visakhapatnam) showed comparatively better AQI but still not safe.
- No Indian city recorded “safe” air quality in the last decade.
- Delhi remained the most polluted city throughout the period.
- Northern Indian cities (Delhi, Lucknow, Varanasi) show the worst and most persistent pollution.
For Reference:
Delhi Winters and Air Pollution – Anantam IAS
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