Tandavasamudram is a village in Gingee tehsil in district of Viluppuram, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Tandavasamudram was 1,756 which includes 865 males and 891 females. Tandavasamudram covers 823.9 ha area. Pincode of Tandavasamudram is 604151.