Eastern Tamils inhabit a region that spans the Trincomalee, Batticaloa, and Ampara districts.
Their history and traditions are inspired by local legends, native literature, and colonial documents.

In the 16th century the area came under the nominal control of the Kingdom of Kandy, but there was scattered leadership under Vannimai chiefs in Batticaloa District who came with Magha's army in 1215.
From that time on, Eastern Tamil social development diverged from that of the Northern Tamils.

Eastern Tamils are an agrarian-based society.
They follow a caste system similar to the South Indian or Dravidian kinship system.
The Eastern Tamil caste hierarchy is dominated by the Mukkuvar, Vellalar and Karaiyar.
The main feature of their society is the kudi system.
Although the Tamil word kudi means a house or settlement, in eastern Sri Lanka it is related to matrimonial alliances.
It refers to the exogamous matrilineal clans and is found amongst most caste groups.
Men or women remain members of the kudi of their birth and be brother or sister by relation.
No man can marry in the same kudi because woman is always become sister to him.
But, a man can only marry in one of his sampantha kudis not in the sakothara kudis.
By custom, children born in a family belong to mother's kudi.
Kudi also collectively own places of worship such as Hindu temples.
 Each caste contains a number of kudis, with varying names.
Aside from castes with an internal kudi system, there are seventeen caste groups, called Ciraikudis, or imprisoned kudis, whose members were considered to be in captivity, confined to specific services such as washing, weaving, and toddy tapping.
However, such restrictions no longer apply.

The Tamils of the Trincomalee district have different social customs from their southern neighbours due to the influence of the Jaffna kingdom to the north.
The indigenous Veddha people of the east coast also speak Tamil and have become assimilated into the Eastern Tamil caste structure.
Most Eastern Tamils follow customary laws called Mukkuva laws codified during the Dutch colonial period.
Eastern Tamils inhabit a region that spans the Trincomalee, Batticaloa, and Ampara districts. Their history and traditions are inspired by local legends, native literature, and colonial documents.
In the 16th century the area came under the nominal control of the Kingdom of Kandy, but there was scattered leadership under Vannimai chiefs in Batticaloa District who came with Magha's army in 1215. From that time on, Eastern Tamil social development diverged from that of the Northern Tamils.
Eastern Tamils are an agrarian-based society. They follow a caste system similar to the South Indian or Dravidian kinship system. The Eastern Tamil caste hierarchy is dominated by the Mukkuvar, Vellalar and Karaiyar. The main feature of their society is the kudi system. Although the Tamil word kudi means a house or settlement, in eastern Sri Lanka it is related to matrimonial alliances. It refers to the exogamous matrilineal clans and is found amongst most caste groups. Men or women remain members of the kudi of their birth and be brother or sister by relation. No man can marry in the same kudi because woman is always become sister to him. But, a man can only marry in one of his sampantha kudis not in the sakothara kudis. By custom, children born in a family belong to mother's kudi. Kudi also collectively own places of worship such as Hindu temples.  Each caste contains a number of kudis, with varying names. Aside from castes with an internal kudi system, there are seventeen caste groups, called Ciraikudis, or imprisoned kudis, whose members were considered to be in captivity, confined to specific services such as washing, weaving, and toddy tapping. However, such restrictions no longer apply.
The Tamils of the Trincomalee district have different social customs from their southern neighbours due to the influence of the Jaffna kingdom to the north. The indigenous Veddha people of the east coast also speak Tamil and have become assimilated into the Eastern Tamil caste structure. Most Eastern Tamils follow customary laws called Mukkuva laws codified during the Dutch colonial period.
Sri Lankan Tamils