The yard sweepers and changers of clothes are in the lowest rank.
The bungalows of the planter and his assistants are in an isolated areas. The dwellings of the workers called line rooms are situated a little further away from the factories.
Those who are considered to be of higher castes occupy the first row of line rooms.
Many died during their first few months of employment. The Census of 1871, 1881, 18 had lumped together Sri Lankan Tamils and Indian Tamils.
Since 1911, Indian Tamils have been shown as a separate category. In 1911, Indian Tamils constituted 12.9 per cent of the population, whereas Sri Lankan Tamils formed 12.8 per cent; in 1921, 13.4 per cent and 11.5 per cent; in 1931, 15.2 and 11.3; in 1946, 11.7 and 11.0; in 1953, 12.0 and 10.9; in 1963, 10.6 and 11.0; in 1971, 11.6 and 11.2; and in 1981, 5.5 per cent and 12.7 per cent respectively.
Most are Hindus with a minority of Christians and Muslims amongst them.