Wikipedia
The Vengi (or Venginadu) is a region spread over the mandals of Godavari and Krishna districts. The capital city of Vengi is located at Pedavegi near Eluru. This area was part of Kalinga until that kingdom was conquered by Emperor Ashoka of the Mauryan Empire in the mid-3rd century BC. After the Mauryan Empire collapsed in 185 BC, the region was dominated by the Satavahanas, who were succeeded in Vengi by the Andhra Ikshvakus. Around 300 AD, the Andhra Ikshvakus were replaced by the Salankayanas, who were vassals of the Pallavas of Southern India. In the late 5th century, the Salankayanas were annexed by the Vishnukundinas.
King Pulakesin II of the Chalukya conquered Vengi from the Vishnukundinas in the early 7th century and installed his brother Kubja Vishnuvardhana as the viceroy. He eventually established the Eastern Chalukya dynasty. The Eastern Chalukyas were first conquered by the Cholas under Raja Raja Chola I (985-1014) and subsequently became very closely aligned to the Chola empire through marital alliance between the Cholas and the Eastern Chalukyas. This insulated the Eastern Chalukyas from the interference of the Western Chalukyas who sought to make the Eastern Chalukyas as their subordinates. During the reign of the Kulothunga Chola I the Vengi kingdom got absorbed into the Chola empire.