Describe the regional and lingual situation in Sri Lanka ?

Sri Lanka is an island nation, just a few kilometres off the southern coast of Tamil Nadu. It has about two crore people, about the same as in Haryana. Like other nations in the South Asia region, Sri Lanka has a diverse population. The major social groups are the Sinhala-speakers (74 per cent) and the Tamil-speakers (18 per cent). Among Tamils there are two sub- groups. Tamil natives of the country are called ‘Sri Lankan Tamils’ (13 per cent). The rest, whose forefathers came from India as plantation workers during colonial period, are called ‘Indian Tamils’. Tamils are concentrated in the north and east of the country. Most of the Sinhala- speaking people are Buddhists, while most of the Tamils are Hindus or Muslims. There are about 7 per cent Christians, who are both Tamil and Sinhala.