mycontroller = this

var data =
[
{"No":"456980",
"Updates":[{ "Test": "abc"}, {"Test": "bca"},{"Test": "dbd"}] },
{"No":"456980",
"Updates":[{ "Test": "abc"}, {"Test": "bca"},{"Test": "dbd"}] },
{"No":"456980",
"Updates":[{ "Test": "abc"}, {"Test": "bca"},{"Test": "dbd"}] }
]
var oModel = new sap.ui.model.json.JSONModel();
oModel.setData(data);

//set this model to list control having custom list as aggregation
mycontroller.List1.setModel(oModel);

mycontroller.List1.bindAggregation("items",{path:"/",template:mycontroller.List1_template});

var ListItems = P1Notificationcontroller.list1.getItems();
var ListLength = ListItems.length;

for(var i=0; i<ListLength; i++){
var control = "status_vbox-list1-"+i;
sap.ui.getCore().byId(control).bindAggregation("items",{path:"Updates",template:new sap.m.Text('',{text:'{Update}'})});
}

oController.List1 = new sap.m.List("List1",{headerDesign : sap.m.ListHeaderDesign.Standard});
oController.List1_template = new sap.m.CustomListItem("McustomlistItem",{content : [
new sap.m.VBox('',{items:
  [
             new sap.m.Text('',{text:"{No}"})
            new sap.m.VBox('status_vbox',{items:[]})
  ]
  }));

var jsonmodel = new sap.ui.model.json.JSONModel("mockData/local.json");
mycontroller.List1.setModel(jsonmodel)