The iron pillar situated at Mehrauli, Delhi is belonged to which of the following Gupta ruler?

Chandragupta II

The correct answer is Option 4- Chandragupta II

The iron pillar located in Mehrauli, Delhi, is commonly associated with the reign of Chandragupta II, also known as Chandragupta Vikramaditya, who ruled the Gupta Empire from approximately 375 to 415 CE. Nonetheless, the precise origins of the iron pillar remain a subject of debate among historians, and its dating lacks absolute certainty.