there are lot of content giving solution around this question, but answers were not convincing so I had to post here.
We had two branches of our code, I merged one into another, but other team members had seen lot of overrides in the merged version, so all that I want is to rollback the project to a version (x) before the merge(x+1) happenend.
I have VS 2012/ Eclipse TFS everywhere 2011.