Durga puja is one of the largest festivals in India. It is the largest and most joyous festival in Bengal. Lakhs of pilignms throng the famous Devi temples all over India for celebration of Navaratra, the nine-day worship of Devi Durgä.This book has been reproduced from various Puraias, stras, scholarly writings and common sayings of the people. The purpose of writing this book is to preach the name of Devi Durga among the people of all religions all over the world. People celebrate and participate in Durga ptrja with reverence to the Mother of the Universe. However, only a small part of the votaries have understanding about DevI Durga, reasons and benefits of worshipping Her, and how She is worshipped. This humble presentation may contribute to the understanding about Dcvi Durgaby the common people.