Bosya was born in a collective farm called Shar Luuzan in Astrakhan oblast’. Both her parents worked on the collective farm, her mother as a milkmaid, and her father as a shepherd. When Bairta was seven, her family was sent into exile to Khanty-Mansiisk okrug in Siberia where she spent her childhood and adolescence. After returning to Kalmykia, Bairta got married and gave birth to six children. She has 13 grandchildren and six grand-grandchildren.