I love this book. E. Stanley Jones was often called the "Billy Graham of India" and was ahead of his time when it came to having open inter-faith dialogue and understanding the cultural context in which to have that dialogue. He introduced "indigenization" in India.
Jones was an American missionary to India from 1907-1973. He was a close confidant to FDR in the months leading up to December 7, 1941, trying to avert war with Japan. As a result, he was nominated for a Nobel Peace Prize. His biography on Wikipedia is fascinating. You can read it HERE.
Also, the book can be viewed in a PDF HERE.