Tiruvannamalai district is a district located in the state of Tamil Nadu in India. It is situated in the northeastern part of Tamil Nadu and has its headquarters in the town of Tiruvannamalai. The district is named after the famous Annamalaiyar Temple, which is located in the town and is a major pilgrimage site for Hindus.
Tiruvannamalai district is known for its rich cultural heritage and natural beauty. It is surrounded by the Eastern Ghats and has several hills and forests. The district is also home to many ancient temples, ashrams, and spiritual centers.