Srivilliputhur Megamalai Tiger Reserve (SMTR) was formed during the year 2021, as per G.O.(Ms)No. 14, Environment and Forests (FR-5) Department, Dt.08.02.2021 under section  38 V of the Wild Life (Protection) Act, 1972 in accordance with the recommendation made by National Tiger Conservation Authority.  It is 51st Tiger Reserve in India and also 5th in Tamil Nadu.