New Delhi [India], November 9: Delhiite woke up with another foggy day on Thursday, as a bulky blanket of pollution still overwhelms the city.

The pollution index level in Punjabi Bagh and R.K. Puram were at the highest with Air Quality Index reaching up to 799 and 652 respectively, which is comparatively a lesser amount than in the past three days.

The maximum Air quality index in the Delhi and its nearby areas is floating between 400-700, which is above the danger level.

The lowest pollution index level was recorded in East Delhi's Dilshad Garden area with 264 AQI.

A total of 41 trains are arriving late in Delhi area because of smog, nine trains have been slated again and 10 call off.

In the wake of the pollution level in the city reaching the risky level, the Health Ministry on Wednesday issued a pollution advisory, asking citizens to drink plenty of water and to keep away from areas with smoke or heavy dust, among other measures.

All schools in the Delhi will remain closed till Saturday.

The Delhi Metro will also augment the frequency of trains to encourage Delhiites to use the public transport due to dangerous sharp pollution levels.

The city's air quality get worsen ahead of winter as cooler air traps pollutants near the ground, preventing them from dispersing into the atmosphere.