India is the only country outside the Mediterranean with a continuous Christian connection since apostolic times. However, the subject of Christianity as one of the oldest agencies of culture change in the country had remained a neglected field of study by anthropologists and other social scientists till the late fifties. In the present book, Dr. K.N. Sahay, well-known for his pioneering studies on the Christianization process in India,presents a composite picture of the genesis and development of Christian movements on local,state and all-India levels; sociok-cultural transformations among the tribal and Hindu converts of Bihar; interdenokminational interactions among the Roman Catholics and Protestants; transformations viewed in a theoretical perspective; charitable and welfare work of Christian Missionaries and significant recent trends of change visible among Indian Christians, The study is based on extensive field work and is considerably informative and the author's assessment objective, factual and balanced. This book would be useful not only to the anthropologists but historian and other social scientists in general, Christian Missionaries and thelaity, philanthropists, planners,those connected with welfare programmes and the enlightened laymen.