Attavanai Erayamangalam is a village in Tiruchengode tehsil in district of Namakkal, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Attavanai Erayamangalam was 6,428 which includes 3,169 males and 3,259 females. Attavanai Erayamangalam covers 1568.08 ha area. Pincode of Attavanai Erayamangalam is 637210.