Pettai is a panchayat village2011 Village Panchayat Code = 251642, and revenue village in Pondicherry Union Territory, India.2001 Census Village code = 8400, Administratively, Pettai is under the Thirunallar Taluk (formerly Thirunallar Commune Panchayat) of Karaikal District, Pondicherry Union Territory. Pettai is situated on the banks of the Arasalar River, to the west of Karaikal town and south of Thirunallar.
In the 2011 census 3,208 people were recorded as living in Pettai village.
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