This book on the Aryan Invasion theory, entitled “Aryan Invasion Theory: The Truthof Leftist Dogma”. This book explains the Aryan Invasion theory in amuch elaborate way, and discusses the whole history, concepts andobjectives behind the Indo-Aryan notion in detail. This book provides a number of evidences from linguistics, archaeology, genetics, geologyand others, all of which collectively debunk this notion. The bookalso provides detailed accounts of agriculture origin in India and itsempirical evidence, and also human presence in India much earlier thanthe time told popularly, when the out-of-Africa migration brought HomoSapiens to India, as the popular notion is. The book also gives adetailed account of the River Sarasvati, its evidence, its subsequentprogress and decline mentioned in the Vedic texts, and also how itdebunked the Aryan-Dravidian myth.