Arunthodu is a village in Vandavasi tehsil in district of Tiruvannamalai, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Arunthodu was 1,045 which includes 527 males and 518 females. Arunthodu covers 283.56 ha area. Pincode of Arunthodu is 604501.