The haze, or an atmospheric brown cloud hanging over major Asian cities including Delhi and Mumbai, essentially affects local conditions and can be swept away by a new weather system or winter rains as is often the case in the Capital.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/brown-clouds-local-phenomenon-seasonal-nature-experts
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/times-india-new-delhi
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-pollution
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/atmospheric-brown-clouds
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/cse
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/india
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/delhi