Sivagalai is a village in Srivaikuntam tehsil in district of Thoothukkudi, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Sivagalai was 4,087 which includes 1,991 males and 2,096 females. Sivagalai covers 737.36 ha area. Pincode of Sivagalai is 628753.