The correct answer is option 4: Guptas. The Mehrauli pillar inscription is an important historical artifact that belongs to the Gupta period in ancient Indian history. The pillar is located in the complex of the Qutub Minar in Mehrauli, Delhi.
The Gupta Empire, which ruled from approximately the 4th to the 6th centuries CE, was known as the Golden Age of ancient India. During this time, the Gupta rulers made significant contributions to art, architecture, literature, and philosophy. The Mehrauli pillar inscription is one such example of their architectural and historical significance.
The inscription on the pillar is written in Sanskrit and is attributed to King Chandragupta II, also known as Chandragupta Vikramaditya. It provides important information about the achievements and victories of the Gupta Empire. The pillar inscription is a valuable source for historians to understand the political, cultural, and social aspects of ancient India during the Gupta period.
Therefore, the Mehrauli pillar inscription belongs to the period of the Guptas, option 4.