The best working, high-quality version of R.S. Khurmi’s A Textbook of Engineering Mechanics is officially sold on Amazon Kindle (readable on any device, no Drive needed). The unofficial Google Drive links disappear weekly—don’t rely on them for your semester exams.
If you're unable to find the PDF through Google Drive or other online sources, you can try purchasing the book or borrowing it from a library. Many online retailers, such as Amazon, sell the textbook. The best working, high-quality version of R