Sahu was born on 23 July 1973 in G. Udayagiri in Orissa, India. Her parents were teachers in Indian local schools. She and her five sisters grew up in an obedience life. She received her PhD degree on English poetry under the guidance of prof Niranjan Mohanty. She has written several books including poetry collections. Her writings are based on the subjects of Indian-English Literature, American Literature, English Language Teaching (ELT), Folklore and Culture Studies and also Children's literature. She has designed and developed programmes on Folklore and Culture studies for IGNOU. She is also the editor-in-chief of Interdisciplinary Journal of Literature And Language, New Delhi. Moreover, Sahu has delivered lectures on various subjects in India and abroad.