The caste system of the Sri Lankan Tamils resembles the system of the Sinhalese, but the individual Tamil castes differ from the Sinhalese castes. The dominant Tamil caste, constituting well over 50 percent of the Tamil population, are the Vellala. Like the Goyigama, members are primarily cultivators. In the past, the Vellala formed the elite in the Jaffna kingdom and were the larger landlords during the colonial period, they took advantage of new avenues for mobility and made up a large section of the educated, administrative middle class. In the 1980s, the Vellala still comprised a large portion of the Tamil urban middle class, although many well-off families retained interests in agricultural land. Below the Vellala, but still high in the Tamil caste system, are the Karaiya (see Glossary), whose original occupation was fishing. Like the Sinhalese Karava, they branched out into commercial ventures, raising their economic and ritual position during the nineteenth century. The Chetti, a group of merchant castes, also have a high ritual position. In the middle of the caste hierarchy is a group of numerically small artisan castes, and at the bottom of the system are more numerous laboring castes, including the Palla, associated with agricultural work.

The caste system of the Tamils is more closely tied to religious bases than the caste system of the Sinhalese. Caste among the Sri Lankan Tamils derives from the Brahman-dominated system of southern India. The Brahmans, a priestly caste, trace their origins to the dawn of Indian civilization (ca. 1500 B.C.), and occupy positions of the highest respect and purity because they typically preserve sacred texts and enact sacred rituals. Many conservative Brahmans view the caste system and their high position within it as divinely ordained human institutions (see Hinduism , this ch.). Because they control avenues to salvation by officiating at temples and performing rituals in homes, their viewpoint has a large following among traditionally minded Hindus. The standards of purity set forth by the Brahmanical view are so high that some caste groups, such as the Paraiyar (whose name came into English as "pariah"), have been "untouchable," barred from participation in the social functions or religious rituals of other Hindus. Untouchability also has been an excuse for extreme exploitation of lower-caste workers.

Although Brahmans in Sri Lanka have always been a very small minority, the conservative Brahmanical world-view has remained strong among the Vellala and other high castes. Major changes have occurred, however, in the twentieth century. Ideas of equality among all people, officially promoted by the government, have combined with higher levels of education among the Tamil elites to soften the old prejudices against the lowest castes. Organizations of low-caste workers have engaged in successful militant struggles to open up employment, education, and Hindu temples for all groups, including former untouchables.24b s.

The Indian Tamils are predominantly members of low castes from southern India, whose traditional occupations were agricultural labor and service for middle and high castes. Their low ritual status has reinforced their isolation from the Sinhalese and from the Sri Lankan Tamils.

Data as of October 1988