The 2013 World Population Data Sheet offers detailed information on 20 population, health, and environment indicators for more than 200 countries. This year's data include: wealth and income disparity, HIV/AIDS prevalence, percent of population with access to improved sanitation, and more.
Links:
[1] http://admin.indiaenvironmentportal.org.in/reports-documents/2013-world-population-data-sheet
[2] http://admin.indiaenvironmentportal.org.in/category/publisher/population-reference-bureau
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/population
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/statistics
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/india
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/global
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/health
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/environment
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/sanitation