RBD Samanya Gyan by Khan Sir (Hindi Medium)

This book by Khan Sir is written in a simple and engaging style, covering a wide range of important General Knowledge topics. It includes history, geography, politics, economics, science, sports, and current affairs along with practice questions and answers. Highly useful for competitive exams like SSC, Railway, Bank, Defence, and various state-level examinations, the book serves as a complete guide for aspirants to strengthen their preparation.