Ennayiram is a village in Vikravandi taluk in Villuppuram district in the Indian state of Tamil Nadu. The major occupation of the people living at this place is agriculture. "Ennayiram" means eight thousand in Tamil. An inscription dated 1025 C.E., belongs to the Rajaraja Chola mentions the name "ennayiram". Hence the name "ennayiram" is 1000 years old. There is a debate that ennayiram also refers to the caste name of Jain merchants. Also, ennayiram refers large number too.
Ennayiram village has more than 1000 years old heritage. This village was a city during the Rajaraja Chola I period. It was dominated by Jains before the arrival of Ramanuja. It is also believed that Saint Ramanuja had converted eight thousand Jains to Vaishnavites here.It was called Rajaraja Sathuurvedimangalam in those times. The main importance of this village comes from Azhagiya Narasimma Perumal temple, a Vedic college and Ennayira malai which contains evidence for the past existence of Jain monks.Tamil poet Kalamegam was born in this village.