Modaiyur 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 Modaiyur was 3,878 which includes 1,984 males and 1,894 females. Modaiyur covers 979.41 ha area. Pincode of Modaiyur is 604206.