Rohtak, July 29 -- Haryana's fight against air pollution remains an uphill task, with cities in the National Capital Region (NCR) and industrial towns witnessing the highest number of unhealthy air days over the past three years despite efforts under the National Clean Air Programme (NCAP).

The Air Quality Index (AQI) data tabled by the Union ministry of environment, forest and climate change in the Lok Sabha revealed that one of the state's most populous cities, Gurugram, emerged as the state's most polluted city from 2023 to 2025, recording 458 "bad air days"- days when air quality remained in the poor, very poor, or severe categories.

The data shows that during these years, Gurugram remained among the state's most polluted cities, re...