The Iron Pillar in Qutub Complex, Delhi is a stellar example of advanced metallurgy technology in Gupta Period (circa 320 - 550 CE). The 7 m (23 ft) high pillar was made corrosion resistant. It bears Sanskrit - Brahmi inscriptions eulogising the achievements of King Chandra which is believed to be about King Chandragupta II (circa 380 – 414 CE).
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