Yeroor Narasimha temple is located on the Anchal – Kulathupuzha road at Yeroor in Kollam District, Kerala. The 10-day annual festival is observed in such a manner that it ends on Thiruvonam nakshatra in Medam month with arattu.
The temple is also known as Thrikoyikkal Sree Maha Narasimha Swamy temple.
The five feet murti worshipped in the temple is Chaturbahu or with four hands. The deity in the round sreekovil faces west.
The Upa Devatas in the temple are Shaivamurti, Ganapathy, Ayyappan, Rakshas, Yakshi and Nagarajavu.
It is believed that the Prathishta in the temple was performed by Brahmins form Malabar.
The temple was renovated during the rule of Sree Moolam Thirunal Maharaja.