Another approach is to help the user search for the book using specific keywords. Maybe the exact title isn't correct, or it's known under a different name. I can suggest using search engines or academic databases with the keywords "Shri Kali Kalpataru" to see if there are any legitimate sources. If the book is a part of a specific tradition, linking to websites that cover that tradition could also be useful.
Another approach is to help the user search for the book using specific keywords. Maybe the exact title isn't correct, or it's known under a different name. I can suggest using search engines or academic databases with the keywords "Shri Kali Kalpataru" to see if there are any legitimate sources. If the book is a part of a specific tradition, linking to websites that cover that tradition could also be useful.