[1] The town is situated on the banks of the Cheyyeru River and has been an important religious and cultural hub for centuries.

It is a replica of Thiruvannamalai Arunachalesvara Temple and patronized by Cholas, Pandyas, Kakatiyas, Vijayanagara, Pottapi and Matli Kings.

Historical inscriptions found in and around Nandalur indicate that the town was an important center for religious activities, particularly during the medieval period.

Additionally, the town attracts religious tourists,[6] particularly to its temples, which supports the local economy through hospitality and related services.

The population is primarily involved in agriculture, with a growing number of people working in trade, services, and small industries.