Alathur 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 Alathur was 3,933 which includes 2,034 males and 1,899 females. Alathur covers 798.02 ha area. Pincode of Alathur is 606702.