SharePoint 2013 Provider hosted app

Hi,

For starting Provider hosted app, I would suggest please go through following links once

https://msdn.microsoft.com/en-us/library/office/fp142381.aspx 

http://blogs.technet.com/b/meamcs/archive/2013/02/24/sharepoint-provider-hosted-app-walkthrough-part-1-preparation.aspx : This one is really good.

And for ASP.net mvc, please have a look at 

http://blogs.msdn.com/b/bspann/archive/2013/01/19/asp-net-mvc-based-apps-for-sharepoint-2013-on-premises.aspx 
http://blogs.msdn.com/b/officeapps/archive/2013/07/09/introducing-mvc-support-for-apps-for-sharepoint.aspx 

If still have some confusion, please let me know.