As far as I can see, there’s no actual change to the structure, as such; you are simply renaming a directory to include more keywords.
My advice would be this. If you are restructuring your site, and need to make changes to the directories, go ahead and do what is necessary. If you are simply trying to manipulate search results, then don’t bother; the effect is likely to be negligible.
If you do need to change the URLs, then 301 redirects should ensure there is no problem either for search engines, or for visitors who may have bookmarked pages.
@TechnoBear Thank you for your suggestions. Yes i was simply trying to add more keywords
in order to assist in easier assessment of our website by Google-bots which ultimately also help in
in improving search results performance.
I will keep your note in mind while discussing with my colleagues.