Man's search for metals goes back to prehistoric times. Metals have been used for several thousands of years in India. Certain periods in history are associated with specific periods used extensively during that period. (C. N. R. Rao)

Man's search for metals goes back to prehistoric times. Metals have been used for several thousands of years in India. Certain periods in history are associated with specific periods used extensively during that period.

C. N. R. Rao

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