Synopsis This book is a sequel to my treatise called The Shudras –Who they were and How they came to be the Fourth Varna of the Indo-Aryan Society which was published in 1946. Besides the Shudras, the Hindu Civilization has produced three social classes whose existence has not received the attention it deserves. The three classes are:- 1 The Criminal Tribes who number about 20 Millions or so; 2. The Aboriginal Tribes who number about 15 millions; and 3. The Untouchables who number about 50 millions. The existence of these classes is an abomination. The Hindu Civilization, gauged in the light of these social products, could hardly be called civilization. It is a diabolical contrivance to suppress and enslave humanity. Its proper name would be Infamy. What else can be said of a civilization which has produced a mass of people who are taught to accept crime as an approved means of earning their livelihood, another mass of people who are left to live in full bloom of their Primitive barbarism in the midst of civilization and a third mass of people who are treated as an entity beyond human intercourse and whose mere touch is enough to cause pollution?