Visibility decreases to less than 200 meters in the dense fog in downtown area of New Delhi, capital of India on November 7. (Photo: Yuan Jirong)

The Environment Pollution-Prevention and Control Authority (CPCA) said New Delhi is facing a "crisis situation" in India. The Central Pollution Control Board recorded "severe" air quality, which is likely to persist for the next few days, NDTV reported.

By 2:30 pm on Tuesday, US Embassy in New Delhi showed the real-time level of PM2.5 reached 947. Visibility in New Delhi downtown area is very low.

CPCA had already taken steps to tackle the pollution crisis. Parking fees in New Delhi are set to quadruple. New Delhi and neighboring states strengthened the public transport system by introducing more buses. If the situation continues to deteriorate, CPCA will recommend to shut schools and enforce the odd-even car rationing scheme.