IELTS requirement for student visa of Canada
You must take IELTS or any other Enlish Language Proficiency Test if you want to get admission in any of Canadian Universities. Although there are some exceptions if you have been proved that you have taught in English medium at higher school level for at least two years.
Almost all universities of Canada requires a minimum of 6.5 overall Band in IELTS. In addition Universities of Canada only accept IELTS Academic Module for admission. All information about canadian universities can be found at http://www.aucc.ca