Avanathankottai is a village in Aranthangi tehsil in district of Pudukkottai, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Avanathankottai was 2,683 which includes 1,320 males and 1,363 females. Avanathankottai covers 843.76 ha area. Pincode of Avanathankottai is 614624.