Nallathi is a village in Srivaikuntam tehsil in district of Thoothukkudi, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Nallathi was 2,874 which includes 1,445 males and 1,429 females. Nallathi covers 1268.97 ha area. Pincode of Nallathi is 628251.