A solid pillar of rust-resistant steel forged many centuries ago and standing next to the Qutab Minar in Delhi is a testimony of the steel manufacturing skills of Indian artisans. Name the century in which it was constructed?

  • 8th century AD
  • 7th century
  • 6th century AD
  • 4th century AD
A solid pillar of rust-resistant steel forged many centuries ago and standing next to the Qutab Mina
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