Is there a way to upload .feature file to rally against any story or feature and also to publish to rally the Automated reports
You are trying to link data that is incompatible. A story is a historical piece of data it is related to when it was created.
A .feature
file is a current piece of data it documents the current state of your application.
If you try and link the two together you end up either
Both of the above are really bad things.
The thing you should link your story to is the pull request or commits that implement the story. Here you are linking data of the same type (both are historical). Note these commits will include the changes to the features that were used to implement the code, so you have an indirect connection of the type you are looking for.