The correct answer is: Pre-Mauryan period.
The cyclopean wall at Rajgir is a series of stone walls that were built around the city of Rajgir in India. The walls are believed to have been built in the Pre-Mauryan period, which was a time before the Mauryan Empire. The walls are made of large, uncut stones that were stacked on top of each other without any mortar. The walls are very impressive and are a testament to the engineering skills of the people who built them.
The Mauryan period was a time of great prosperity and expansion for the Mauryan Empire. The empire was founded by Chandragupta Maurya in the 4th century BC and reached its peak under the rule of Ashoka the Great in the 3rd century BC. The Mauryan Empire was one of the largest and most powerful empires in Indian history.
The Gupta period was a time of great cultural and economic development in India. The Gupta Empire was founded by Chandragupta I in the 4th century AD and reached its peak under the rule of Samudragupta in the 4th century AD. The Gupta Empire was a golden age for India and is often referred to as the “Classical Age of India.”
The Pala period was a time of political instability and decline in India. The Pala Empire was founded by Gopala in the 8th century AD and reached its peak under the rule of Dharmapala in the 9th century AD. The Pala Empire was a Buddhist empire that ruled over much of northern India.
The cyclopean wall at Rajgir is a valuable historical artifact that provides us with insights into the history of India. The walls are a testament to the engineering skills of the people who built them and provide us with evidence of the Pre-Mauryan period in Indian history.