New Tab - Same set of components

When I add new tab, all the components from previous tab are copied and if I add/delete any component in the new tab it changes in the other tab as well. The data source of both the tabs is same.

That doesn’t sound right. When you say that you add a new tab, do you mean you add a new tab in the top left portion of the builder? Do you have any screenshots or a video? The top level of a Tab or the top level of a ‘Show New Screen’ should always have an independent Screen’ layout.