public ActionResult AddCollege(CollegeDetailsModel modelToInsert)
        {
            if (!ModelState.IsValid)
            {
                return(View());
            }

            CollegeService collegeService = new CollegeService();

            if (collegeService.InsertCollege(modelToInsert))
            {
                TempData["toast"] = "College Added successfully";
                return(RedirectToAction("ViewColleges"));
            }
            else
            {
                ModelState.AddModelError("AddCollegeFailedError", "Error in adding the college. The College code should be unique");
                return(this.View());
            }
        }