Kujula Kadphises
In the process of their expansion eastward, Kujula Kadphises and his son Vima Takto (or Vema Tahktu) seem to have displaced the Indo-Parthian kingdom, established in northwestern India by the Parthian Gondophares since around 20 CE: His son, Yangaozhen [probably Vema Tahktu or, possibly, his brother Sadaṣkaṇa], became king in his place. He defeated Tianzhu [North-western India] and installed Generals to supervise and lead it. The Yuezhi then became extremely rich. All the kingdoms call [their king] the Guishuang [Kushan] king, but the Han call them by their original name, Da Yuezhi [Great Yuezhi]. The invasion of the Indo-Parthian kingdom led by Kujula Kadphises is thought to have occurred some time after 45 CE, during the reign of Gondophares's successors: Abdagases and Sases.