Periyar is a protected area, and a Project Tiger nature reserve in the South Indian State of Kerala, set high in the mountains of the Western Ghats at the border to Tamil Nadu. It lies in the districts of Idukki and Pathanamthitta. The protected area covers an area of 777 kmē, out of which a 350 kmē part of the core zone was made into the Periyar National Park and Tiger Reserve, sometimes dubbed the Periyar Wildlife Sanctuary. The park is often called by the name thekkady also. Thekkady is located four km from Kumily, approximately 100 km east of Alappuzha, 110 km west of Madurai and 120 km southeast from Kochi.
