Are Tamil and Sri Lankan language similar?

I presume you're talking about Sinhalese when you say 'Sri Lankan language'. Tamil is as much a Sri Lankan language as Sinhalese. Sri Lankan Tamil has a host of dialects that are only nominally intelligible to a Tamilan from India. read more

No Tamil and Sri Lankan language which is known as ‘sinhala’ is not similar. Sinhala belongs to the category of indo-aryan branch. Whereas, tamil is a dravidian language. Sinhala and tamil has many words in common. Such as, Amma (Mother), Appa (Father), Akka (sister) and etc. read more

Tamils live in the State of Tamil Nadu in India, Northern and eastern region of Sri Lanka and as Diasporas all around the world.and 2/3 of Tamil population in Sri Lanka are living alongside with Sinhalese in south and central part of sri lanka: Religion: A majority of Sinhalese people adhere to Theravada Buddhism. There is also a Christian minority. read more

There is another group of Indian Tamils who migrated centuries later to work in tea plantations of the island. Finally, there is a group of Sri Lankan Tamil Muslims who, apparently, do not ethnically identify with other Tamils, unlike Indian Tamil Muslims. read more