Which Gupta ruler successfully resisted the first major Huna incursions into the empire?

Skandagupta successfully resisted major Huna pressure in the mid-fifth century and is remembered as the last powerful ruler of the imperial Gupta line. This question belongs to the Gupta and post-Gupta phase, a period reconstructed through inscriptions, coins, monuments, literary works, scientific texts and accounts of foreign travellers. A reliable answer must connect the named ruler, author, work, institution, title or event with the correct chronology and source. The Gupta age is often described as a classical or golden age because of important achievements in Sanskrit literature, temple architecture, sculpture, astronomy and mathematics, but the label should not conceal regional diversity or social and political change.