The temple is situated on the southwest direction of the place and on the banks of the lake facing east.  There is only one entrance to the temple.  It also has a compound wall.  At the right of the entrance, Lord Vinayaka graces the devotees seated on His Moonjuru (belonging to rat family) vahan.  Lord Muruga with His consorts Valli and Deivanai is on the left.  Entering into the temple, the devotee sees the Bali Peeta, flag staff-Kodimaram, Adhikara Nandhi, Artha Mandap and the sanctum sanctorum where Lord Mudu Kundreeswarar appears in Sadasiva form.  Presiding Lord mounted on the phallus is 2.5 feet tall.

Mother’s shrine: Standing in the centre of Maha Mandap and looking on the northern direction, we can see Mother Periya Nayaki Amman shrine.  Mother is facing south.  In the circular way of the shrines of Lord and Mother, the devotee can worship Kanni Moola Vinayaka in the southwest corner.  1.5 feet tall Lord Chandikeswara has His place on the eastern side of sanctum sanctorum.  In the shrine north of Chandikeswara, Lord Muruga with His leaf shaped weapon Vel in the right hand, an arrow, sword, flag, staff, and a bow in His left hand, lotus etc. appears on the east.  

Lord Vishnu blesses the devotees from His shrine north of that of Lord Muruga.  1.5 feet tall Sri Anjaneya stands majestically opposite to Lord Perumal.  Next is the shrine of Lord Kasi Linganatha Swami.  There are also shrines for Vinayaka and Mother Visalakshi, Mother Durga with Her four hands holding discus and conch (upper) and assuring sign by the lower right and the left placed on the hip.  The temple has Navagragha shrine also.

Devotees seek boons from Lord and Mother to realize various wishes they have in mind.

There are two natural lakes in the place promising fertility to the soil.  Above all, Lord Mudhu Kundreeswarar and Mother Periya Nayaki are the great assets to the people of the place.

One of the leaders of Kadava family called Kachirayars was living in this Mudhunei village during the 12^th century.  He was visiting Vruddhachalam each day to worship Lord Vruddha Giriswarar.  He could not do so due to age.  Pleased with his Bhakthi, it is said that Lord Vruddha Giriswarar granted darshan to the old man with Mother Periya Nayaki and the devotee built the temple at the same spot where he had the darshan.  He also donated adequate lands for the maintenance of the temple, according to history.