Northern India is experiencing a harsh winter, with Kashmir recording sub-zero temperatures and Delhi facing dense fog and 'very poor' air quality. The India Meteorological Department (IMD) issued an orange alert for fog in Delhi, where minimum temperatures are slightly below normal. Despite the 'Chilla-e-Kalan' period of extreme cold in Kashmir, current temperatures are notably above seasonal averages. Light rain is forecast for the national capital on New Year's Day.