by S.K. Hajra Choudhury is a foundational textbook for mechanical engineering students. It covers essential manufacturing techniques, from basic hand tools to complex industrial processes.
Generally, no. The book is published by Media Promoters & Publishers Pvt. Ltd. , a commercial publisher. The copyright is active. Therefore, a 100% legal, authorized free PDF of the latest edition (usually 11th or 12th edition) does not exist publicly. Workshop Technology Vol 1 By Hajra Choudhary Free Pdf