The arteries of the human body show a large number of variations. In literature, many reports are available regarding variations of carotid arteries and their branches. Present paper describes a case of transposition of external and internal carotid arteries. Initially, the internal carotid artery was medial to external carotid artery at the bifurcation of the common carotid artery, while ascending upward the internal carotid artery passes behind the external carotid arteryand ultimately entered the carotid canal. Such variations are important for surgeons and radiologist. 

Keywords: External Carotid Artery; Internalcarotid Artery; Transposition; Variation.