Sellakkakuppam is a village in Sankarapuram tehsil in district of Viluppuram, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Sellakkakuppam was 45 which includes 21 males and 24 females. Sellakkakuppam covers 83.15 ha area. Pincode of Sellakkakuppam is 606402.