The Untouchables Who Were They And Why They Became Untouchables?

Dr. Bhimrao Ambedkars book The Untouchables: Who They Were and Why They Became Untouchables is a sequel to his book The Shudras: Who They Were and How They Came to Be the Fourth Varna of the Indo-Aryan Society.  Dr. Ambedkar said that his primary objective was to construct his theory on the genesis of untouchability by establishing connections between a wide variety of books facts and other pieces of evidence. He said that he didnt want to accept his thesis as the last word and he encouraged open criticism on it; yet he pushed them to consider it acceptable. He said that he didnt want to accept his thesis as the last word