Panaiyur is a village in Mannargudi tehsil in district of Thiruvarur, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Panaiyur was 2,561 which includes 1,267 males and 1,294 females. Panaiyur covers 725.8 ha area. Pincode of Panaiyur is 614717.