Theni District is a district of Tamil Nadu state in South India.Theni district is Located beside Madurai. Almost always engulfed in foggy mist, the town of Theni in Tamil Nadu has started emerging as prominent ourist destination in South India. One of the most prominent tourist attractions in Theni happens to be the Vaigai Dam built across the Vaigai River. Unlike its south Indian counterparts, the weather of Theni is somewhat salubrious for a substantial part of the year. However, winters and the onset of summers are the ideal time to visit Theni. Vaigai dam and Kumbakarai falls in Periyakulam Taluk, Suruli falls in Uthamapalayam Taluk are the main places of attraction for tourists. Best Places to Visit in Theni. Penny Cuick Memorial, Megamalai Wilde Life, Veerapandi, Vaigaidam, Surulifalls, Sanneswarer Temple etc.