Thandavankulam is a village in Sirkali tehsil in district of Nagapattinam, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Thandavankulam was 5,040 which includes 2,438 males and 2,602 females. Thandavankulam covers 1022.2 ha area. Pincode of Thandavankulam is 609101.