URL copied Dense fog shrouds Delhi, air quality improves marginally in ‘very poor’ category A thick layer of fog engulfed parts of the national capital on Sunday including Rajghat and Punjabi Bagh. According to the India Meteorological Department (IMD), cold wave to severe cold wave conditions are likely to re-establish over Punjab, Haryana, Chandigarh and Delhi, Rajasthan and West Uttar Pradesh from 29th December. According to the bulletin, the cold wave situation is likely to increase in spatial coverage during the subsequent two days. Northern parts of Saurashtra and Kutch and West Madhya Pradesh also likely to experience cold wave conditions on these days.