Please have a look at my site https://ehospital.in/
I have approximate 300 hospitals in listing and having 5 categories.
So, My categories are indexed like: Multispeciality hospital in Delhi, Multispeciality Hospital in Mumbai etc. That is perfectly fine.
There are many more other things for which I want these hospitals to be indexed. Example, if a particular hospital has CT scan facility, I want it to get indexed for CT scan in Mumbai also.
I have added CT scan as Tag to the particular hospital and trying to achieve the above. But I am quite confused from SEO points of view. All of my listings and categories are indexed well. But only a few of the tags have been indexed.
Should I make this category only? or Tags shall do the job?
What is the best practice in SEO to achieve good result?