The Origins of Iron-working in India
http://antiquity.ac.uk/ProjGall/tewari/tewari.pdfRecent excavations in Uttar Pradesh have turned up iron artefacts, furnaces, tuyeres and slag in layers radiocarbon dated between c. BCE 1800 and 1000.
Submitted in section: Archaeology: Regional: Asia: India: The Origins of Iron-working in India