While specific Google Drive links often change or get taken down due to copyright policies, here are the best ways to find an active link:

Unlike standard textbooks that focus on theory, Chauhan’s books focus on the application of mechanisms. They challenge students to understand why a certain intermediate forms.

Use a timer to simulate exam conditions once you're comfortable with a topic.

The problems are usually categorized into levels. Level 1 focuses on basic concepts and objective questions, while higher levels introduce complex, multi-step syntheses.

Elementary Problems in Organic Chemistry: Best for NEET and JEE Main aspirants. It covers the basics thoroughly and builds a strong foundation.