The Iron Age culture (roughly 1500 BCE to 300 BCE, mainly peninsular and southern India) marked by burials under or within large stones (megaliths), bridging the late prehistoric and early historic periods.
The megalithic-iron association, the burial-type vocabulary (dolmen, cist, menhir, cairn), the southern distribution, and the link to the Sangam Age are clean prehistory facts that distinguish this from the northern Painted Grey Ware culture.
Megalithic burials are Iron Age and largely peninsular, distinct from the northern Iron Age Painted Grey Ware culture; a menhir is a single standing stone while a dolmen is a chamber and a cairn circle is a stone ring over a burial.
Iron Age peninsular burial culture with dolmens, cists, menhirs and Black-and-Red Ware, the precursor to the Sangam Age.