Claim: Sivakara Deva I was a monarch from the late 8th century A.D. and a descendant of Ksemankara Deva, conquered the forces of Rarh from the Bhaumakara territory(modern Bankura district0 and married the princess of Rarh kingdom Jayavallabhi.
Evidence: He conquered the kingdom of Radha(Rarh) and subjugated the Eastern Ganga rulers of Kalinga as his vassals.