The name of this Temple, Adi Annamalai means ‘first’ or ‘ancient’ Annamalai (Arunachaleswarar). Its size is small and is around an acre in size compared with the 25 acre size of Arunachaleswarar Temple on the southeast side of the Hill.
The legend of Adi Annamalai recounts that Brahma, after His dispute with Vishnu about the fiery column, made a lingam and went to the northwest side of the Hill to establish the Temple of Adi Arunachaleswarar (at the village of Adi Annamalai) to worship Shiva.
Tiruvannamalai is known for its famous Annamalaiyar Shiva temple. The temple we are going to see in this post is much older than that.