This book presents a detailed and chronological account of the ongoing genocide against Sanatan Dharma, which has been facing various atrocities for years. This issue is primarily based on religious and socio-cultural foundations. The Sanatan genocide is not just history; it is the truth behind history, narrating the saga of atrocities and genocide against Hindus for years, which this book titled "Conversion" sheds light on. The sole purpose of writing this book is to bring out the truth and create awareness among Hindus about their history. The book primarily focuses on the topic of religious conversion or transformation and begins with factual research. It also discusses topics like the caste system and casteism, highlighting the narrow mentality associated with it. The author presents in the book, "Wars are fought to win, victory is achieved in history, and history always wins, and somewhere in those pages of history lies the biggest hidden secret of India's history," which he has presented through research in the book. The book focuses on Indian history and the education system, portraying sinners as great and Indian kings as cowards, and teaches about the genocide of Jews in our Indian education system, but very few people discuss the ongoing genocide against Hindus for decades, which also contributes to the perception of Sanatan Dharma as futile, which is also a major cause of collective transformation. The author discusses controversial topics such as the caste system, genocide of Pakistani Hindus, genocide of Bangladeshi Hindus, love jihad, atrocities, Khalistani conspiracy, along with the Indian education system and Islam, Jainism, Buddhism, and Christian communities in this book. This book has the ability to expose the faces of many religions with various evidence and facts. The important thing about this book is that it discusses the saga of atrocities against Sanatan Dharma from ancient times to the present, through research into these issues and knowing the thoughts of many people; otherwise, it has been written with the help of various scriptures and books. With this synopsis, it presents a comprehensive outline of Indian history, through which we can understand the truth behind Indian history. This book is absolutely essential and necessary for students and teachers interested in history.