Q. During which dynasty was the Delhi Iron Pillar constructed?
Answer: Gupta
Notes: The Delhi Iron Pillar was constructed during the Gupta period, around the 4th century CE. It was erected by Chandragupta II. The pillar is made of approximately 98% wrought iron. It stands in the Qutb complex, Mehrauli, Delhi. The pillar is notable for its resistance to corrosion for over 1,600 years. Inscriptions on the pillar mention Chandragupta II.