As per the latest tiger census, Karnataka has 406 big cats out of the 2,226 in India.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/ktaka-may-get-lions-share-funds-tiger-conservation
[2] http://admin.indiaenvironmentportal.org.in/category/author/bosky-khanna
[3] http://admin.indiaenvironmentportal.org.in/category/newspaper/deccan-herald-bangalore
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/karnataka
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/tiger-conservation
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/western-ghats
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/tiger
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/national-tiger-conservation-authority
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/wildlife