As you have mentioned in your question, that you can see the blueprint name used from the HDC UI. You can check for the blueprint name in the above list command output or use name in the blueprint show command. Hope this helps.
i can see it from HDC UI. but i wanted to get the same from cloudbreak shell too. I want to select a stack from shell and see which is the blueprint used by that stack. I will bring up a cluster and try the steps mentioned by @bbihari below and respond.