Uncaught TypeError: Cannot read property ‘ajax’ of undefined

I am using requirejs and in my index I have

and In main.js I have
require([“jquery”,”employeeManager”,”employeeData”], function ($,employeeManger,employeeData) {
alert(“main.js funtion”);
var main= employeeManger.loadStudentData();

return main;

})

and in employeemanger
loadStudentData : function(){

$.ajax({
//url:”http://localhost:63342/NewnodeJsProject/public/data/studentData.json”,
url:”http://localhost:63342/NewnodeJsProject/public/data/studentData.json”,
method:’get’,
success:this.handlerData

})
}

i am loding dependencies properly.. then why i am getting the uncaught error: cannot read property ‘ajax’ of undefined