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.
He conquered the kingdom of Radha(Rarh) and subjugated the Eastern Ganga rulers of Kalinga as his vassals. 
