Please  see the below sources where Dubbed Tamil films are heavily Taxed:
http://www.thehindu.com/todays-paper/tp-national/tp-tamilnadu/drop-in-number-of-dubbed-films-in-tamil-nadu/article3133438.ece
http://www.indiaglitz.com/no-festive-dubbed-releases-council-tamil-news-73664.html