100% literacy in Tamil Nadu. Hmmm never heard of it. In Singapore it is spoken by around 8% of the population and that is because a lot of Tamil labourers were forced by Britishers to go to Singapore. Tamil culture dominant in Sri Lanka and Malaysia that is also not true. Sri Lanka is dominated by Sinhalese and Tamilians are just a minority there and so also in Singapore and Malaysia. Most of the Singaporeans are of Chinese origin. A Language does'nt become great because of having 3000 years of spoken history. I think English has a lot lesser than 3000 years of spoken history but I guess that is the language everyone wants to study.