Hello Samir Vaidya,
Thank you for contacting Telerik support.
Currently Shared content is supported only for Pages. You cannot use this feature for templates.
As this is a highly requested feature we have created a PITS item for it. You can vote and raise its priority. The item ID i 5916
the Telerik team
Do you want to have your say in the Sitefinity development roadmap? Do you want to know when a feature you requested is added or when a bug fixed? Explore the Telerik Public Issue Tracking
system and vote to affect the priority of the items