Following the decline of the Gupta Empire, the imperial Guptas were succeeded by the Later Gupta dynasty. There is no evidence that connects the two families, so it is indicated the later Guptas were a distinct dynasty who adopted the Gupta name to pass off as legitimate successors of the imperial dynasty.
The Later Gupta dynasty in turn was succeeded by the Varman Dynasty of Kannauj
For further reading check the following articles:
|100 Differences Between Articles||UPSC Prelims|
|NCERT Medieval Indian History Notes UPSC||UPSC Mains Questions (2013-2019)|
|NCERT Ancient Indian History Notes UPSC||NCERT Modern Indian History Notes UPSC|