Hi sumeetisher, i hope its not too late for this reply. You do need to go through the processing with the Alliance since you're an international student, after they assess your credentials they will require you to take some courses, mostly online. after you successfully finished the courses then you will be qualified to write the written exam which is the first exam out of the two, then when you passed the written you will then be qualified to apply for practical exam. As for application, I do believe that that you should be here in Canada to do so. Goodluck!