The Vidian or pterygoid canal is the osseous tunnel for both the Vidian artery and nerve. The aim of the current study is to delineate the Vidian canal in CT scans of head and to establish the landmarks for swift and easy localization of the canal. It is also intended to focus on the functional correlations of the structures present in the canal with its anatomy. The Vidian canal is studied in 200 adult CT scans and its measurements including its internal diameter, distances of the canal from the vomerine crest, from superior & inferior sphenoid sinus wall and from the foramen rotendum are noted. It is observed that canal starts from the medial end of petrous part of internal carotid or up to 8 mm from its medial end, mean distance being 6 mm and runs medial to lateral from foramen lacerum in 1/3rd of cases. Canal with suspended by bony stalk into sphenoid sinus noted in 22%, canal embedded in the body of sphenoid noted in 11% and rest had canals in normal expected position. In 5 instances the canal was found to be divided into two identifiable canals. It was concluded that the course of the Vidian canal vary widely interpersonally and also within the subject and thorough evaluation of the canal morphology by imaging techniques is essential in understanding the physiological and pathological events associated with the structures passing through this canal.