Air quality continues to deteriorate in the national capital due to the increasing pollutants and smoke.
The Air Quality Index was in 'severe' category in parts of Delhi on November 09.
Indian Meteorological Department scientist K Srivastava said, "Pollution level in severe category for last 4 days.
The visibility has reduced during morning hours due to fog along with smoke and pollutants.
Situation is expected to remain the same for next 2 days, and likely to improve on November 12-13 due to easterly winds but if people burst crackers on Diwali then situation will get worse."