Antiquity of iron in India was pushed back from following the excavations at Malhar, Raja Nala ka Tila, Dadupur and Lauhradewa in Uttar Pradesh from 1996-2001.
[4] The beginning of the use of iron has been traditionally associated with the eastward migration of the later Vedic people, who are also considered as an agency which revolutionised material culture particularly in eastern Uttar Pradesh and Bihar.
Scholar Rakesh Tewari states that new finds and their dates suggest the need for a fresh review.
[7] Previously known early iron age sites in South India are Hallur, Karnataka and Adichanallur, Tamil Nadu[8] at around 1000 BCE.
[12][13] Other scholars have observed, "besides the political theatrics," that "these findings raise many questions" regarding the "dates which span two thousand years [...] as no culture would remain static, materially for two thousand years.