Patna is at the bottom of the 50 liveable cities of India, while Mumbai is at the top.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/patna-bottom-liveable-city-mumbai-top
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/bihar-times-bihar
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/patna-d
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/bihar
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/health
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/economy
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/environment
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/housing
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/urbanisation
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/mumbai
[11] http://admin.indiaenvironmentportal.org.in/category/thesaurus/delhi
[12] http://admin.indiaenvironmentportal.org.in/category/thesaurus/kolkata
[13] http://admin.indiaenvironmentportal.org.in/category/thesaurus/noida
[14] http://admin.indiaenvironmentportal.org.in/category/thesaurus/gurgaon-d
[15] http://admin.indiaenvironmentportal.org.in/category/thesaurus/bangalore-d
[16] http://admin.indiaenvironmentportal.org.in/category/thesaurus/hyderabad-d
[17] http://admin.indiaenvironmentportal.org.in/category/thesaurus/chennai-d
[18] http://admin.indiaenvironmentportal.org.in/category/thesaurus/shimla-d
[19] http://admin.indiaenvironmentportal.org.in/category/thesaurus/mysore-d
[20] http://admin.indiaenvironmentportal.org.in/category/thesaurus/agra-d
[21] http://admin.indiaenvironmentportal.org.in/category/thesaurus/raipur-d
[22] http://admin.indiaenvironmentportal.org.in/category/thesaurus/kanpur-d
[23] http://admin.indiaenvironmentportal.org.in/category/thesaurus/nagpur-d