Thillaivayal is a village in Avudayarkoil tehsil in district of Pudukkottai, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Thillaivayal was 163 which includes 75 males and 88 females. Thillaivayal covers 128.21 ha area. Pincode of Thillaivayal is 622204.