I want to add Visio web part which is not available in my webpart option on my webpage. How to enable new webpart options in webpart section on a SharePoint 2013 page?
To be able to use the Visio webpart, Visio services must be deployed and configured.
Here is the information regarding this service from Technet: http://technet.microsoft.com/en-us/library/ee663485.aspx
And here is more about getting it up and running: http://technet.microsoft.com/en-us/library/ee524058.aspx