Hallur, located in Karnataka, is a key site for understanding the South Indian Neolithic and transition to the Iron Age. Archaeological excavations at Hallur have revealed evidence of Neolithic settlements, including pottery, tools, and agricultural practices. Adichanallur (Tamil Nadu) is predominantly an Iron Age burial site. Brahmagiri (Karnataka) is also a multi-period site with evidence from the Neolithic-Chalcolithic and Iron Age, making it a valid Neolithic site as well. Kurnool district (Andhra Pradesh) is famous for prehistoric cave sites yielding rich evidence of Paleolithic and Mesolithic periods, not primarily known as a major Neolithic site. Given the options and the typical emphasis in studies, Hallur is strongly associated with the Neolithic period in South India.