The evolution of the Iron Age in India started from 1600 BCE to 600 BCE with the migration of Vedic People eastward who had the history of the revolution of the material culture in the eastern part of Uttar Pradesh and Bihar.
After the evolution of the Iron Age, the iron smelting took a drastic change and went on a bigger scale by the end of the 13th Century. Numerous weapons and instruments were made using iron which was used for various purposes.
Mostly the culture of the ironworking was around the Central Ganga Plain and the Eastern Vindhyas which started since a very long time (2nd millennium B.C.E.) and the earliest sites of Iron sites include Hallur, Tamil Nadu, Karnataka, and Adichanallur of Southern part of India.