Kalthurai (கல்துரை in Tamil) is a small and evergreen Village in Tamil Nadu, India and falls under village panchayat administrative unit of kottathurai in palani taluk, Dindigul District. Major river called Shanmuga Nadi is running through the village. The Shanmuganadi Dam is built across the Shanmugha Nadi in this village. Kalthurai is one of the best education village in Tamil Nadu.