I recall that many Hindu texts are in the public domain, especially if they're part of ancient traditions. But even then, some modern publications might still be copyright-protected. Another angle is that the user might be looking for a digital copy of a rare manuscript that's difficult to find. In that case, providing guidelines on how to locate it legally through libraries or online repositories like Google Books or Project Gutenberg would be appropriate.
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. shri+kali+kalpataru+book+pdf+link
Additionally, I need to consider the user's intent. Are they a scholar, a practitioner of Kali worship, or someone with a casual interest? If it's for spiritual practice, directing them to authentic Tantric scriptures or online forums where such materials are discussed might be more helpful. I should also mention ethical considerations to avoid promoting illicit sharing of copyrighted content if that's the case. I recall that many Hindu texts are in