Ottakoil is a village in Ariyalur tehsil in district of Ariyalur, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Ottakoil was 4,703 which includes 2,344 males and 2,359 females. Ottakoil covers 1795.12 ha area. Pincode of Ottakoil is 621705.