Here is a template for a useful Reddit or forum post on this topic: Helpful guide: How to legally access the IADVL Textbook of Dermatology (or affordable alternatives)
It's important to be careful here: violates copyright laws and this subreddit/platform’s policies. The IADVL (Indian Association of Dermatologists, Venereologists and Leprologists) is a professional body, and their textbook is a paid, copyrighted resource. iadvl textbook of dermatology free pdf
Ask your department's PG residents. Many have permission to share chapter-wise PDFs (for personal study) from the library's digital copy—that's legal and safe. Here is a template for a useful Reddit