Hi Abhishek,
Yes, using a single project is also an option in your case.
To answer the other question as to when you might want to use multi-project suites, here're some thoughts:
* Modularity, e.g. using different projects for different components of the tested application, or different tested applications.
* Being able to view and work with multiple projects at the same time. (If you have one project per suite, you'll need to close the current project/suite before opening another one).
* Share some data between the projects using project suite variables.
* Switching to another scripting language for new tests.
