It was the Guptas of Magadha
that came up forcefully after the Mauryas and unified the North India. The Gupta period spanned from 320 A.D through 540 A.D. and is described as the golden period in the history of India.
Sreegupta was the founder of the Gupta dynasty. During the reign of Chandragupta I and Samudragupta the Gupta Empire became India’s greatest political force.
Chandragupta II, who was also known as Vikramaditya, was another genius of a king of this dynasty. The classic authors like Kalidasa
and Amarasimha and many other scientists and scholars adorned the court of Vikramaditya, enjoying his patronage. It was during this period that Fahien, the Chinese traveler visited India. The Shad-darshanas, one of the significant branches of Indian Philosophy developed in its full shape during the Gupta period.
The White Huns of Bamiyan in Afghanistan, who came up during the mid-fifth century A.D were responsible for the downfall of the Gupta Empire. Emperor Skandagupta defeated the Huns once, but the invaders returned and towards the close of the fifth century, the Gupta Dynasty vanished in history.
Who were these Huns? There are no traces of them after the sixth century. They had dissolved in the Indian stream of life, notes historian Romila Thapar.