Patna Shivers as Cold Wave Grips Bihar, Schools Closed Till Saturday oneindia.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from oneindia.com Daily Mail and Mail on Sunday newspapers.
Delhi's air quality index (AQI) showed a marginal improvement from the previous day's average reading. According to the data of Central Pollution Control Board (CPCB), the AQI was recorded at 351 ('very poor') at around 9 am