Sembattamalayanur is a village in Ulundurpettai tehsil in district of Viluppuram, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Sembattamalayanur was 2,080 which includes 1,072 males and 1,008 females. Sembattamalayanur covers 284.71 ha area. Pincode of Sembattamalayanur is 606701.