Pillaiyarpatti is located near Thiruppathur, Sivagangai District of Tamil Nadu. It is situated between Kundrakkudi and Tiruppatthur. Pilliyarpatti is 12 Kilometers away from Thiruppatthur and 3 kilometers from Kundrakkudi. Pillaiyarpatti Karpaga Vinayagar is carved out in a cave of Pillaiyarpatti Hillocks. Lord Vinayagar is carved out from the rock of the cave. Lord Thiruveesar is also carved in the rock of this cave. The temple was built under patronisation of Pandyas.