As a Pakistan u will have to get a visit visa to travel to Canada.  
About ur profile : What course are you taking ?  are u a student or work full time ?
If its a work related training / course and ur work wants you to go then get supporting documents from your work. 
If u are a student and going just to study, ur chances on a one month course are very LOW.  
Share ur profile and we can discuss further. 
K