If you are stuck at the "I understand the concept but cannot solve puzzles under time pressure" stage, this book is your breakthrough. The "Varshney Speed Technique" alone is worth the price of the book.
Unlike other books that list rules, Varshney gives a 4-step elimination checklist. The book teaches you to stop solving the question and simply check sufficiency, saving critical time in exams. Reasoning Book with Piyush Varshney Edition- 01
: Emphasizes mental aptitude and speed, providing shortcut formulas and mind-mapping techniques for faster problem-solving. If you are stuck at the "I understand