Chandragupta II was succeeded by his son Kumaragupta who enjoyed a long reign of 40 years. He performed an asvamedha sacrifice which implies new conquest. He was able to maintain intact the mighty empire which he had inherited from his father. His coin are discovered at Ahmedabad, Valabhi, Junagarh and Morvi in the west and as far as Satara and Ellichpur. It is probable that Kumaragupta added a part of western Malwa to the Gupta Empire. Towards the close of Kumaragupta's reign the empire was threatened by hordes of the Pushyamitras who were defeated by Skandagupta the crown prince.
They could exploit the iron ores of Central India and South
Bihar. They took advantage of their proximity to the areas in north India which
carried on silk trade with the Byzantine Empire. Due to these favourable factors
the Guptas set up their rule over Anuganga (middle Gangetic basin), Prayag
(modern Allahabad), Saket and Magadha. In course of this time this kingdom
became an all India empire.
Sources of Gupta Rule
Political history of Guptas