Kubja Vishnuvardhana (624–641) was the brother of Chalukya Pulakesi II. Vishnuvardhana ruled the Vengi territories in the eastern Andhra Pradesh as the viceroy under Pulakesi II from around 615. Eventually Vishnuvardhana declared his independence and started the Eastern Chalukya dynasty (c. 624).
The Eastern Chalukyas ruled the Vengi kingdom for nearly five centuries and had very close relationship with the imperial Cholas.
Read more about Kubja Vishnuvardhana: Origin of Eastern Chalukyas, Possible Reason For The Partition, Vishnuvardhana's Reign