The duo were active cadres in neighbouring Jharkhand and members of the Maoist Communist Centre (MCC), Superintendent of Police Aniruddha Kumar Singh said.
The surrendered Maoists included Mochhi Lugun alias Munda, a close associate of Gunga Munda, a top cadre of Chhotanagpur division of red rebels. Mochhi joined the out-lawed outfit to strengthen the activities in Keonjhar district, the SP said.
The woman cadre, Munkhi Munda alias Muni (30), hails from Jhirpani village of Sundargarh district. She is the wife of Gunga, who joined the cadre to undertake various Maoists activities.
They will be provided with government assistance as per rehabilitation policy, Singh said.
During the last three years, a total of 28 Maoist activists have surrendered before police.