This Recent era many educational data are using by researchers for fining hidden pattern of students learning ability, students’ academic performance, student’s behaviour towards study and so many issues solved with using data mining techniques. This paper study focuses on parameters which mostly affect the decision of students for selecting the post graduate course. There are also other numerous factors to consider, from the university and its location, course information published by institute, reputation of institute, to the costs and funding involved with course, prerequisite examination, to what career your postgraduate degree could lead to, and that’s barely scraping the surface.