This is an ancient rock cut temple. Scholars says that Lord Vinayaga is the Lord
of wisdom, As Vinayagar satisfies the wishes of his devotees like Karpagam tree,
he is also known "Karpaga Vinayagar". Here Lord Vinayaga appears with 2 hands unlike
in other places where he is seen with 4 hands. Also he is seen seated without Angusapasam,
with his legs folded and stomach not touching the Asanam in the form of "Artha Padma"
Asanam. The word Vinayaga means "Incomparable Leader" Devotees worshipping Valamburi
Vinayagar seated facing towards north, will be blessed with all wealth.
The deity of this temple is known as "Marudeeswarar" as Marudha tree (In Sansscrit
Arjuna Virutcha, The Botanical name is Termanalia Arjuna) worship is followed in
this temple which indicates that this temple in an ancient temple. The sculptur
of pasupatheeswarar, "A cow worshipping Lord Siva by offering his milk" is the special
feature of this temple. Also kubheran the Lord of wealth had worshipped at this
temple.
Also adding to the sprituality Goddess Laxmi, Saraswathi and Durgai are found together at the same sport.
Unlike other places the three Lingams Thiruveesar, Marudheesar and Senchadeswarar
and the three Goddess Sivagami amman, Vadamalar Mangaiamman and Soundara Nayaga
amman all appear together at the same place and bless the devotees.
It is believed that by worshipping Kathyayini amman at this temple women get relived
from sevvai dosham which prevent them from getting married. "Sabda Madhar" whom
importance due to changing time are provided with a seperate sannidhi known as Sakthi
sannidhi at this temple. 
Antiquity: Over 15 inscriptions are found within the temple, that help establish
the age of the temple. The Stalapuranam published by the temple classifies the growth
of this temple into three distinct stages.