(a) The Iron Pillar at Mehrauli (near the towering Qutub Minar) in Delhi, is a remarkable example of the skill of craftspersons.
(b) It is made of iron, is 7.2 m high and weighs over 3 tonnes.
(c) This pillar was made nearly 1500 years ago. The date is known because there is an inscription on the pillar.
(d) This Iron Pillar is great proof of the advanced technology of metal work in India. It has not rusted in all these years.