Pelamarathur 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 Pelamarathur was 3,484 which includes 1,825 males and 1,659 females. Pelamarathur covers 1180.86 ha area. Pincode of Pelamarathur is 635703.