<h3>Pollution in Delhi remained in the 'severe' level for the third consecutive day today as wind speed and other meteorological factors remained "highly unfavourable".  People have been advised by the authorities to minimise outdoor activities and avoid the use of private vehicles. According to the Indian Institute of Tropical Meteorology, the air quality is likely to improve by tomorrow but will remain in the upper end of the 'very poor to severe' category.</h3><br />