India, Oct. 27 -- The air quality in the Capital deteriorated further to the "very poor" category on Sunday after two days of recording "poor" air. The 24-hour average air quality index (AQI) on Sunday was logged at 315, as compared to 292 on Saturday, as per the Central Pollution Control Board (CPCB) data.

The CPCB's daily bulletin of 4pm was released at 11pm on Sunday, due to a technical glitch. Data on CPCB's Sameer app was also not updated after noon. Officials said while 39 stations in the city were active and gathering data, a server glitch lead to no updates in both CPCB's website and app.

"Our stations are functional but there was a glitch, which was not allowing the servers to be updated," said a senior CPCB official, involved ...