The Tea Board in Mumbai is in the process of working on the patent for Darjeeling tea and has initiated discussions with the Government officials and overseas
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/board-working-patent-darjeeling-tea
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/business-line-new-delhi
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/agriculture