Tiruvannamalai District is known for eternal peace and divine with the proud possession of the sacred shrine of Lord Arunachaleswara and Ashrams. It had started functioning as a separate District from 30th September 1989, on bifurcation of the erstwhile North Arcot District.
Tiruvannamalai is one of the most venerated places in Tamil Nadu. In ancient times, the term "Annamalai" meant an inaccessible mountain. The word "Thiru" was prefixed to signify its greatness, and coupled with the two terms, it is called Tiruvannamalai.
The temple town of Tiruvannamalai is one of the most ancient heritage sites of India and is a centre of the Saiva religion. The Arunachala hill and its environs have been held in great regard by the Tamils for centuries. The temple is grand in conception and architecture and is rich in tradition, history and festivals. The main Deepam festival attracts devotees from far and wide throughout South India. It has historic places besides Tiruvannamalai, Arni, Vandavasi, Devigapuram connected to East India and French companies. In the late Chola period this district was ruled by the Cholan of Sambuvarayar having Padavedu near Arni as HQ. We can now find the fort and note along with a Shiva temple namely Kailasanathar in Arni town.