Columbia subject headings:
Excavations (Archaeology)--India--Tamil Nadu.
India--Antiquities.
Megalithic monuments--India--Tamil Nadu.
Neolithic period--India--Tamil Nadu.
Tamil Nadu (India)--Antiquities.
Harvard subject headings:
Excavations (Archaeology)--India--Tamil Nadu.
India--Antiquities
Megalithic monuments--India--Tamil Nadu.
Neolithic period--India--Tamil Nadu.
Tamil Nadu (India)--Antiquities.
Princeton subject headings: