Kundathil Sree Dharmasastha temple is located at Vayalar in Alappuzha district, Kerala. The temple belongs to Kundathil Kovilakam. Vishnu, Sastha and Bhagavathy are worshipped on the same peedam on the temple.
Sastha is worshipped in the middle, with Vishnu Bhagavan on the right and Bhagavathy on the left.
As per history the temple was built by a Thirumulpad from Parappanad who had escaped the persecution of Hyder Ali of Mysore.
Some of the important nearby temples are Keraladithyapuram Sree Krishna Swamy temple, Kumaramkodu Ganapathy temple, Vayalar Pazhayaykkal Bhagavathi temple and Ezhupunna Bhagavathi temple.