Step 1:
Create a new language file copying the base content from Bundle.js. For Eg. Bundle_ta_IN.js.
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Copy this new file in to Oviyam2/js/i18n/Bundle_ta_IN.js
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Add this new language file details in oviyam2/WEB-INF/classes/conf/oviyam2-7-config.xml configuration file.
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Rebuild the war file and deploy it in JBoss/Tomcat deploy folder.
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The newly added language file will be processed and shown in the languages list in Oviyamâs - Settings - Preferences Page.