Sri Mehanadhar temple is located in Thirumeeyachur village, in Tiruvarur district of Tamil Nadu in South India. The Chief deity of this temple is Meganathaswami (Mihara Aruneswarar, Muyarchi Nathar) (Lord Shiva) and his consorts are Lalithambika and Soundarya Nayaki. The festival deity of this temple is Panchamurthi.
The holy trees of this temple are Mandharai and Vilwa. The holy water of this temple is Surya Pushkarini. The agamam or pooja of this temple is known as Kameeyam. This temple is nearly 1000-2000 years old in this region. The historical name of this place is Tirumeeyachur.
According to the local legends, â€œThe glory of Lord of the temple is praised by Saint Gnanasamabandar in his Thevaram hymns. This is the 56th Shiva temple on the southern banks of Cauvery praised in Thevaram hymns.
In January-February, Rathasapthami is grandly celebrated by the devotees and pilgrims in the temple. It is to be noted that all the Lord Shiva and Devi related auspicious days, religious important days and festival are also grandly observed.
In the temple, Lord Shiva is a swayambumurthi. On the Sri Chakra Raja Simhasana-throne, Mother Lalithambika is seated with her merciful Abhaya Hasatha Mudra-assuring all protection to pilgrims and devotees. It is to be highly observed that Mother Lalithambika is all very powerful in this temple. It is to be remembered that from Chithirai 21 to 27 – April-May, the rays of Sun fall directly on the Lord. Special ritual and Surya puja is conducted during these days.