Show latest content date from group content type
After a some research and hit and trial I'm able to configure views output as per requirements with Views merge row module. Below are the steps I've followed:

Install Views Merge Row module.
Create a Views with group content type.
Select Format -&gt; Card
Add fields:

Group Title
Content Changed on (relationship content)




In card settings Select &quot;Group Field 1&quot; as a Group Title.
Now under views Advance-settings Select &quot;Merge rows&quot;
Under Merge row settings select following configuration:





Field
Merge Option




Group Title
Use Values of this field as a filter


Content Changed
Use First Value of this Field





Sort -&gt; Ascending