According to the National Health Portal, India stands second on the world diabetes chart with 69.2 million cases after China with over 100 million cases.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/states-high-gdp-face-greater-risk-diabetes-study
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/indian-express-new-delhi
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/diabetes
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/communicable-diseases
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/diarrhoea
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/indian-council-medical-research-icmr
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/health