Explanation:

The Huns were the nomadic tribes of Mangolia. They first invaded India (Gupta empire under Skandgupta] in 458 A.D.The invasion of India by the Hunas began about a hundred years after the Kushanas' invasion.  The Gupta Empire in India reigned in the Ganges basin during the 5th century, and the Kushan dynasty occupied the area along the Indus. After defeating the Kushanas, the Hunas entered the subcontinent from the Kabul valley.The invasion of India by the Hunas began about a hundred years after the Kushanas' invasion. The Gupta Empire in India reigned in the Ganges basin during the 5th century, and the Kushan dynasty occupied the area along the Indus. After defeating the Kushanas, the Hunas entered the subcontinent from the Kabul valley.