I have used Redmine for all my projects to track the code and commits. But now i have been asked to use Open Atrium which is quite similar to the Red mine. I always see the commits in the repository in the redmine and see the difference in the code committed.
Is there any chance by which i can see the commits and the code change that has been made to the commit in Open atrium?
Open Atrium (and subsequently Drupal) has nothing like that out of the box, but you might want to take a look at the Version Control API module:
Version Control API is an engine for Drupal integration with a variety of version control systems. The focus is primarily on working with canonical, server-side repositories. It provides basic tools that allow for things like history listings, commit access controls, triggered actions when new code comes in, and direct on-disk repository management.
It has extension modules for Git, SVN, CVS, Mercurial and Bazaar currently.