The boys aged 13 and 14 respectively have been detained and they will be produced before Juvenile Justice Board here, police said.
The incident came to light today when the victim, who belongs to village Chandakedi of Tehsil Bilaspur, complained of a severe stomachache and her family took her for a medical check up where she was found to be over seven months pregnant.
Her parents then submitted a complaint to the police and subsquently the girl was admitted to a government health centre here.