How to close a bootstrap modal programmatically using AngularJS - angularjs

Question

I have a tab view which has a button to open a modal.
<button class="btn btn-primary btn-etis" data-toggle="modal" data-target="#addModal">Add</button>
The modal is opened via ng-include and by its referencing its name which is 'addModal'
<div ng-include=" 'register/individual/views/modal/addBookOfAccounts.html' "></div>
Here is my modal code:
<!-- Add BOA Modal-->
<ng-form class="form-etis" name="addBoaForm" method="post">
<div class="modal fade" id="addModal" tabindex="-1" role="dialog"
aria-labelledby="addIdentificationModalLabel" aria-hidden="true"
data-backdrop="static">
<div class="modal-dialog" role="document">
<div class="modal-content">
<div class="modal-header">
<div class="modal-title" id="addModalLabel">
<div class="no-margin no-padding">
<i class="fa fa-book"></i> NEW Book of Account Details
</div>
</div>
</div>
<div class="pull-right">
<a class="btn btn-primary btn-etis" href=""
ng-click="ctrl.submitBoaForm()">Ok</a>
<a class="btn btn-danger btn-etis" href=""
data-dismiss="modal" role="button" ng-click="ctrl.closeBoaForm()">Cancel</a>
</div>
inside my controller
self.submitBoaForm = function () {
if (self.isBoaFormValid()) {
self.bookOfAccountsGrid.data.push(self.bookOfAccounts);
self.resetBoaDetails();
alert('New BOA Saved');
} else {
console.log('invalid boa form')
}
}
self.closeBoaForm = function () {
self.showBoaFormValidations = false;
self.resetBoaDetails();
};
I am able to display the modal just by using data-target. My only problem is on how do i close the modal programmatically inside the submitBoaForm() after the alert method?