public JsonResult GetStudentDetails(StudentMustafa student)
        {
            var studentDetails = anEnrollCourseManager.GetStudentDetailsWithRegistrationNo(student);

            TempData["std"] = studentDetails;
            var courses = anEnrollCourseManager.GetAllCoursesByDeptId(studentDetails.DepartmentId);

            studentDetails.Courses = courses;
            return(Json(studentDetails));
        }