You're looking for a story related to "Statistical Quality Control" by Mahajan. I assume you meant to ask for a summary or an overview of the book, rather than a fictional story. Here's what I found:
"Statistical Quality Control" by Mahajan is a comprehensive textbook that provides an in-depth coverage of statistical quality control methods and techniques. The book is written for students, researchers, and practitioners in the field of quality control, engineering, and statistics. Statistical Quality Control By Mahajan.pdf