They will publish your Ph. D. thesis as a book with ISBN in record time without any publication/processing charges. Eventually it will be put on to the online sellers such as Amazon. So, what's wrong in that?
This publisher will publish whatever you offer them. No review process is followed and many of the good institutes in India have blacklisted and the claimant does not get any marks in API score.
My honest opinion is to target a good publisher like Routledge (Taylor and Francis); Springer etc. All of them carry a huge reputation and add a lot of value to your profile. I had an experience of publishing a book with Taylor and Francis, though it took time in the review process and meeting global standards, but after critical reviews and submitting a revised proposal; table of contents; Chapter abstract etc the book is now published. This process took almost three years but gives you an academic gratification as your work is widely acknowledged across all the reputed institutes.
Cover Page The Textile Industry and Exports in Post-Liberalization India
So I would recommend going for quality rather quantity.