European Union diplomats have recently approved new anti-tobaco legislation, including the bloc's first rules on e-cigarettes, allowing most e-cigarettes to be sold as consumer products rather than more tightly regulated medical devices. In the absence of Federal Regulations, US states like New York & Oklahoma have seen highly debated proposals and some bans being implemented.
Links:
[1] http://admin.indiaenvironmentportal.org.in/data-statistics/e-cigarettes-ban-or-not-ban
[2] http://admin.indiaenvironmentportal.org.in/category/publisher/india-environment-portal
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/smoking
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/health-effects
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/tobacco
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/european-union-eu
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/united-states-america-us
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/health-policy
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/global