Updated On: 09 January, 2026 01:38 AM IST | Mumbai | mid-day online correspondent
Among other cities, Delhi recorded a 134 per cent year-on-year increase in air purifier searches, with November 2025 volumes six times higher than October 2025

Representational image. File pic
India’s winter pollution worsened across major metros in late 2025, with government monitoring agencies reporting sustained deterioration in air quality.
According to the Central Pollution Control Board (CPCB), Delhi repeatedly slipped into the `Severe` and `Severe Plus` categories during November and December, triggering stricter measures under the Graded Response Action Plan (GRAP). Air Quality Index (AQI) levels crossed 400 on multiple occasions, far exceeding safe limits.