Prathishta / Presiding Deity : Lord Ayyappa
Upadevatha / Sub Deities : xx
Thanthri: Perumbadappu Mana
The presiding deity in this temple is Lord Ayyappa. This temple is also known as 'Vayalin kavu'. Actually Nangulam temple is a co-ordination of three temples, whish situates just near a farmland.The middle temple is a Vishnu temple. A 1 & 1/2 of acre pond is situated infront of that temple.There is a relationship between this pond and 'Vishnusarppam'(naga of Vishnu). Its 'Vishnusarppam' who marked the boundary of that pond.So the pond is named as 'Nagakkulam' and now became 'Nangulam. The sub-deities of the Vishnu temple are Lord Vinayala and 'Bhadrakali'.
The Sastha temple situates to the south of that pond. Here Lord Ayyappa resides in a meditative form and faces to east.
The 'Devi' temple situates on the east side. Its known as 'Karippokkavu'. 'Cherukunnil amma' is the sub deity here.
Lord Ayyappa in this temple is a partner of 'Arattupuzha' festival. The main festival
starts on the day 'Makayeeram' of the malayalam month 'Meenam'. The festival is
also in 'Arattupuzha' and 'Perumanam'. It ends on the day 'Atham'. During this season,
Sastha visits the agricultural farms , whish shows the prosperity of the temple
Thrissur-Ollur route(Venginissery- 1&1/2 km from ollur)