Dr PJ Thomas was one of the rare breeds of economists who made a difference in modern India’s history. A product of Oxford, he served as economic advisor to the governments of both, British India Government (1942-1947) and independent India led by India’s first Prime Minister Jawaharlal Nehru, and represented India to sign the United Nations charter invites inaugural session held in San Francisco in 1945. He strode like a colossus in economic thinking on the eve of India’s independence. His observations in the sphere of general sales tax, population growth, rural employment guarantee, land reforms, green revolution, local self government, co-operatives and rural indebtedness turned out to be prophetic. Independent India saw most of his innovative ideas becoming a reality. The much touted MGNREGA (Mahatma Gandhi National Rural Employment Guarantee Scheme was originally the brain child of Thomas, who mooted it in one of his works during early 1930s. This book based on ten years of research on the life and contribution of Dr PJ Thomas covers his monumental contributions as an academic, teacher, economist, administrator, author and parliamentarian. The book will be useful for researchers and post graduate students of economics. It is also a treasure mine of information for policymakers, bankers, tax experts, central bankers, and those who are interested in the study of federal finance in India.