which gupta ruler was successful in repulsing the huna attack
Skandagupta He was also faced with invading Indo-Hephthalites or Hunas, probably the Kidarites, from the northwest. Skandagupta had warred against the Huns during the reign of his father, and was celebrated throughout the empire as a great warrior. He crushed the Huna invasion in 455, and managed to keep them at bay.