this is my first ever post on this web page, although I have been reading your posts etc and it is useful many a times. Well coming back to the above question M/s. is used for a proprietorship company not for a Pvt Ltd or Public Ltd company. This I learned when I was working with a Chartered Accountant.
Hope this will help you guys.
Also see http://thalmual.com/article/articles...er-format.html both found at http://www.google.co.uk/#q=When+do+y...880e0c34638eae
Hence, a search of the web would have highlighted the different views.
Have a nice day.
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