India, Oct. 25 -- Delhi's air quality remained in the 'poor' category for the second day on Saturday. The AQI was recorded as 257 at 8 am on October 25, days after Diwali celebrations in the city led to a spike in smog and air pollution.

The overall 24-hour average air quality of the national capital was recorded as 275 a day earlier on Friday at 4pm, according to the data by the Central Pollution Control Board.

In the Delhi NCR area, the AQI was recorded at 330 in Sector 51 of Gurugram, 229 in Faridabad and 300 in Ghaziabad's Indirapuram. In Noida, the AQI stood at 307 and 263 in Meerut. Overall, major NCR areas showed 'poor' air quality.

The city on Thursday saw improved air quality; however, a layer of smog was still visible in the ...