The Rajiv Gandhi Wildlife Sanctuary (Nagarahole) has seen an increase in tiger population and is all set to top the list in South India.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/survey-shows-tiger-population-rise-nagarahole-forests
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/deccan-herald-bangalore
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/karnataka
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/tiger
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/nagarahole-np
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/census-habitat-monitoring
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/project-tiger
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/wildlife