Pollution level in Delhi remained at 'severe' level on Monday, with Central Pollution Control Board (CPCB) data showing Delhi's overall Air Quality Index (AQI) at 445.
The Centre-run System of Air Quality and Weather Forecasting (SAFAR) showed a higher level at 477.
The AQI figures imply that Delhi's air quality has not improved since Sunday, when the city had recorded the second highest pollution level so far this year. AQI on Sunday was at 450, according to CPCB data.
The highest was recorded on November 8, a day after Diwali, when the AQI touched 571.
Authorities told PTI on Sunday