Am currently running kibana 4.3.1 . Is there any way that I can export dashbords as a tar file? .. Since Am working in production system, I cannot check it with the higher versions.
From Kibana you can only export dashboards (and other saved objects) as json. You could then tar the json.
There's one example like this;
elasticdump --input=http://production.es.com:9200/my_index --output=$ | gzip > /data/my_index.json.gz