Hi Praveen,
Content Search Web Part might not be able to achieve the requirement as mentioned, as a suggestion, there is a need to develop a custom web part solution with the
help of SharePoint Object Model and Search API.
About SharePoint 2013 Search API:
https://msdn.microsoft.com/en-us/library/office/dn423226.aspx
Add, Update and Delete List Items Programmatically in SharePoint using SharePoint Object Model
http://www.mindfiresolutions.com/Add-Update-and-Delete-List-Items-Programmatically-in-Sharepoint-372.php
More information about
SharePoint Object Model:
http://msdn.microsoft.com/en-us/library/ms473633.ASPX
Thanks
TechNet Community Support
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