Gurugram, Oct. 13 -- Heavy spells of rain early on Monday left several arterial roads and internal lanes in Gurugram waterlogged, even as the city's air quality improved to its cleanest level this month. Gurugram recorded an average air quality index (AQI) of 116, in the moderate category, down from 133 on Sunday, according to the Central Pollution Control Board's (CPCB) Sameer app. Despite the improvement, the city had the worst air quality in the National Capital Region (NCR) on Monday. Faridabad recorded an AQI of 104, also in the moderate category, while Delhi's air quality improved to 83, marking its first satisfactory day this month. Ghaziabad recorded an AQI of 75, also its first satisfactory reading in October, while Noida logged 74. Despite having the highest AQI in NCR, Gurugram recorded its cleanest air so far this month after 10 days of moderate and two days of poor air quality. According to the India Meteorological Department (IMD), Gurugram received 50.5mm of rain until 8.30am on Monday. The minimum temperature dropped by nearly 5degC to 19.4degC, while the maximum was 31.2degC. Faridabad recorded 11mm of rain. All four AQI monitoring stations in Gurugram were operational on Monday. At 5pm, Vikas Sadan saw the highest AQI at 172, followed by Sector 51 at 123 and Teri Gram at 104, all in the moderate category. Meteorologist Navdeep Dahiya said suspended dust particles remained a major contributor to Gurugram's air pollution, with roadside dust, construction activity and damaged roads adding to particulate matter levels. Meanwhile, residents reported waterlogging at Tulip Chowk in Sector 69, Sectors 10, 14 and 32, New Colony and the Sector 12 bus stand road, with water remaining accumulated in several areas long after the rain stopped. Sunil Sareen, a Sector 102A resident and co-convenor of the Dwarka Expressway Gurugram Development Authority, a citizens' platform, said the Sector 102/102A road remained waterlogged around 9.30am. "Within a few hours of rainfall, this was the status of a road which was built at a cost of over R14 crore," he said. A Municipal Corporation of Gurugram (MCG) official said pumps were deployed to drain accumulated rainwater from affected areas following complaints from residents....