The primary objective of this book is to contribute to the noble cause of spreading knowledge and helping students grow intellectually. It is often believed that writing and publishing a book to educate others is one of the most sincere ways of serving God, because knowledge has the power to transform lives and uplift society. Guided by this belief, the authors have prepared this book with great dedication and responsibility. A special emphasis has been placed on supporting students from the Hindi medium. In many academic environments, students who study in English often receive more exposure and resources, which can sometimes place Hindi medium students at a disadvantage. Recognizing this challenge, the authors have carefully designed the content, explanations, and presentation of this book so that Hindi medium students can clearly understand the subject and develop strong conceptual knowledge. The language and structure of the book aim to make learning easier, more accessible, and more meaningful. By simplifying complex ideas and presenting them in a clear and systematic manner, the book seeks to build confidence among students who may feel hesitant due to language barriers. The ultimate goal is to empower these students so that, after studying this book, they are able to compete academically and intellectually on equal footing with students from English medium backgrounds. In essence, this book is not only a source of academic information but also an effort to promote equality in education. The authors hope that it will inspire confidence, strengthen understanding, and help students achieve their full potential regardless of the language of instruction.