Ayyapadeva succeeded Gonka II, his uncle, on the Vengi throne. His earliest inscription is from Yenamalakuduru dated A.D. 1237. Probably Bayyapanayaka figuring in an undated inscription at Bapatla and Bayyanadevamaharaja of the Trovagunta record, also undated are identical with Ayyapadeva. China Bayyanadeva maharaja was perhaps his son. The upper limit of Ayyapa’s reign is not known.
Little is known about the events of the reign. Ayyapa does not seem to have come into conflict with the rulers in other kingdoms. Probably he associated China Bayyana and Ganapati, brother of Gonka II in governing the kingdom.