This book is about history of India. It is my sincere attempt to tell all the people of my country about us - who we all are and where we came from. Critical analyses of the three migrations - Hunters and Gatherers around 80000 years ago, Central Asian Pastoral population around 50000 years ago and Indo-Aryans around 6000 years ago, and, three invasions - King Alexander, Islamic and the British, that this country faced, is carried out, to clearly bring out the evolutionary process that this country was subjected to, since 80000 years ago. The partially interbred population from the three migrations, had given rise to great philosophies about God and life, that had influenced other religions of our world. Finally, this book analyzes and questions the implementation of the infamous Caste System, the enormous damage it had done to the Indian Society and the need to eradicate the same. Dr Soundar Divakar is a retired Scientist from a National Laboratory. After completing MSc degree in Chemistry from Pachaiyappa's College in Chennai, he obtained his PhD degree in Chemistry from the Australian National University, Canberra in 1982. Since then, he is actively involved in research in the areas of Bio-Organic Chemistry and Biotechnology, Astrology and Indian History. In his research career spanning 46 years he has to his credit 152 research publications, in National and International Journals besides guiding several PhD and MSc students. He has authored four books - Enzymatic Transformation (Springer), Naadi Astrology - Predictive rules (VL Media Solutions), Language of Rahu (Notion Press) and Astrology - A Science of the Quantum World (Notion Press). Since 2018, for the last four consecutive years, his name has appeared in the Top 2% of World Scientists List published by Stanford University Scientists.