What is a major social division or composition in sri lanka

Caste System with: Govi (farmers and the larger caste), Karava (mariners/navigator), Durava (claim to be Naga ancestry or royalty), Salagama (cinnamon planters).

Explanation:

Sri Lanka is an island in Indian Ocean with around 21.02 million population. The country has strong roots with Buddhism and shows in its social division the ancient caste systems. The caste system is hierarchical system, that divides people in classes and subgroups based in the work they do. People from different group can not intermarry and its unchangeable the position you were born.

Sri Lanka now has many castes as Govi (farmers and the larger caste), Karava (mariners/navigator), Durava (claim to be Naga ancestry or royalty), Salagama (cinnamon planters). However the society is evolving for a classification based in capital acquisition today and the caste system remaining more as a symbolic idea.