Restore the kibana visualizations and Dashboards with old index

Dear Team,

After the kibana upgrade from 6.2.4 to 6.5.1, the previous visualizations, and dashboards are missing.
Is there any way to restore back the old visualizations and dashboards.

Hello Rajesh,

Do you still have access to your visualizations on 6.2.4? You should be able to export them and then re-import and associate with the new indices:

https://www.elastic.co/guide/en/kibana/current/managing-saved-objects.html

Thanks,
Aaron