The national capital continued to reel under heavy smog on Monday morning, with air quality levels remaining in the “very poor” category and several areas slipping into “severe” pollution levels. (Pics/PTI)

Residents of Delhi and the National Capital Region (NCR) experienced marginal relief on Tuesday as weather conditions led to a slight improvement in air quality and visibility. The change came after north-westerly surface winds helped disperse the thick fog and haze that had blanketed the region a day earlier. (Pics/PTI)