How to modify aler box button label for particular module ?

Neeraja P Please suggest me any way to achive this , I will be greatful to you

Neeraja P Please suggest me any way to achive this , I will be greatful to you

I've not tried this but I always start by looking at the original code and trying to reverse engineer it.
In this case I looked at the view for alerts: clients/base/views/alert/*

clients/base/views/alert/confirmation.hbs

shows the labels as being 

alert.cancelLabel

alert.confirmLabel

in clients/base/views/alert/alert.js

you can see that these come from the alert option if there is one or the LBL in the language files:

this.confirmLabel = this.options.confirm.label || 'LBL_CONFIRM_BUTTON_LABEL';

this.cancelLabel = this.options.cancel.label || 'LBL_CANCEL_BUTTON_LABEL';

From there you can explore how to best set the label:

If this is a case by case change add an option to your alert call:
https://support.sugarcrm.com/Documentation/Sugar_Developer/Sugar_Developer_Guide_10.0/User_Interface/Alerts/

If this is a global change you want for all confirmation alerts change the label: 
https://support.sugarcrm.com/Documentation/Sugar_Developer/Sugar_Developer_Guide_10.2/Architecture/Languages/Application_Labels_and_Lists/

Hope this gets you on the right track,

FrancescaS

I played with it and this changes the labels to Yes and No quite easily when the call to the alert is made:

app.alert.show('message-id', {
                level: 'confirmation',
                messages: 'Test yes/no',
                autoClose: false,
                confirm: {label:"Yes"},
                cancel: {label:"No"},
                onCancel: function () {
                     alert("No!");
                },
                onConfirm: function () {
                     alert("Yes!");
                }
            });