Hello Pankaj Tripathi,
Thank you for your interest in nativeScript and our new AutoComplete control. At this very moment, I can not provide an exact date for the AutoComplete feature support in Angular but our developer team has this one with high priority in the implementation list and this feature will be discussed in our upcoming planning (after the release that is about to be released in few days) .
We will update the information in our release notes
as soon as we have released the implementation.
Telerik by Progress