While LibGen is technically not authorized, many students use it. LibGen operates in a legal gray zone. However, if you must use a free source, check your college library’s digital portal first. Many institutions now have subscriptions to Swayam Prabha or NDL (National Digital Library of India) which include standard texts.
Many free PDFs skip the essential tables and IS code annexures at the back. Design Of Steel Structures By B.c. Punmia Pdf Free
I can provide or concept summaries based on your needs. While LibGen is technically not authorized, many students