Sivagalai is a village in the Tuticorin district of Tamil Nadu, India.
It is surrounded by small hamlets, including Nainarpuram, Paramboo, Pottal, Parakiramapandi, Monkottapuran, and Aavarangadu.
It was ruled by Nankudi Vellalars until the proper establishment of Land Prohibition Act 1953.
Sivagalai was once called “Small Ceylon" by the British, as it was a prosperous kingdom under the rule of Nankudi Vellalars, and was surrounded by many lakes.
Hinduism is followed by majority of the population, with Christians and the Muslims making up a minority.