28/04/2016
List of 56 countries that allow DUAL CITIZENSHIP based on Henley & Partners’ interpretation of citizenship legislation in the relevant countries.
http://www.emirates247.com/news/emirates/second-passport-in-4-months-who-qualifies-at-what-cost-2016-04-27-1.628444
Sadly, IINDIA does NOT allow dual nationality! Due to demands from its diaspora, the country did introduce the Overseas Citizenship of India program, which offers a document that looks like a passport, but does not serve as a substitute for a travel document, nor confer Indian citizenship.
A new passport may take as little as 4 months and offers visa-free travel to 115 countries