Vilwanatheswarar, Vallambigai
Vilwanatheswarar Temple, also spelled Bilvanathesvara temple, is a Hindu temple dedicated to the deity Shiva, located in Thiruvalam, a village in Vellore district in the South Indian state of Tamil Nadu. Shiva is worshiped as Vilwanatheswarar, and is represented by the lingam.
His consort Parvati is depicted as Vallambigai. The presiding deity is revered in the 7th century Tamil Saiva canonical work, the Tevaram, written by Tamil saint poets known as the Nayanars and classified as Paadal Petra Sthalam.
The temple complex covers around one acre and is entered through a five-tiered gopuram, the main gateway.
The temple has a number of shrines, with those of Vilwanatheswarar and his consorts Vallambigai, being the most prominent.
All the shrines of the temple are enclosed in large concentric rectangular granite walls. The temple has many historical inscriptions from the 8th-century Nandivarman II era and later.
The north wall of the temple is notable for one of the earliest inscriptions that mention Tevaram singers.

Many parts of the temple complex are attributed to the Cholas, while the present masonry structure was built by the Nayaks during the 16th century. In modern times, the temple is maintained and administered by the Hindu Religious and Charitable Endowments Department of the Government of Tamil Nadu.
The temple has four daily rituals at various times from 6:00 am to 8:30 pm, and four annual festivals on its calendar.
The Brahmotsavam festival is celebrated during the month of the Magam (February - March) is the most prominent festival.
