Namasivayapuram is a village in Kallakkurichi tehsil in district of Viluppuram, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Namasivayapuram was 2,759 which includes 1,403 males and 1,356 females. Namasivayapuram covers 474.74 ha area. Pincode of Namasivayapuram is 606201.