As of 2011, Gurgaon had a population of about 9 lakh, witnessing rapid urbanisation.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/solar-energy-possible-solution-gurgaon%E2%80%99s-power-woes
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/times-india-gurgaon
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/haryana
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/solar-energy
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/renewable-energy
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/solar-pumps
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/corporate-social-responsibility
[8] http://admin.indiaenvironmentportal.org.in/thesaurus/jawaharlal-nehru-national-solar-mission-jnnsm
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/energy