Hello Irfan Mohammed,
Thank you for your feedback regarding desired features in Tableau Server. You might be interested in voting for this feature here: Have the ability to add, edit and manage relationship between data sources deployed on Tableau Server or creating your own idea if this one is not suitable.
Features in upcoming versions of Tableau products are evaluated/determined in-part by the votes and use cases shared with customers in the community forums. We welcome your feedback and ideas.