Please suggest a test management tool

I also faced the same issue and found the solution for it in http://www.getzephyr.com. It helps instant global collaboration with a single person or multiple persons at a time.

For test management .. i think MTM (microsoft test management tool) is best as its come with TFS suite of VS 2010 and its new with new features .. u can analyze it for your purpose and for more info u can get in touch with me

http://anirudhgireydotnet.blogspot.com/2011/08/unix-interview-questions-and-answers.html