Georeference a scanned Map
Overview
1. Add GDAL Georeferencer in Manage Plugins
2. Use add control point tool, and Map Canvas option to create control points
3. Transform the image and load to map view
Because the Georefencer in QGIS works by switching back and forth to the Map Canvas, please see the video linked above for an explanation of the process.
For a description with screenshots, see also
Georeferencing topo sheets and scanned maps from Ujaval Gandhi.
Proceed to Styles and Visualization Instructions