Thazhaiyuthu is a village in Chengam tehsil in district of Tiruvannamalai, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Thazhaiyuthu was 2,420 which includes 1,265 males and 1,155 females. Thazhaiyuthu covers 683.68 ha area. Pincode of Thazhaiyuthu is 606709.