This book contains the lectures which the author delivered as Carmichael Professor of the Calcutta University in February, 1918. Lectures on the Ancient History of India by him is a collection of four lectures focussing on the history of India from 650 BC till 325 BC. It covers a period of ancient Indian history, important yet hitherto unexplored, and provides fascinating details about the life, culture, arts and sciences of the era. Starting with the Aryan colonisation of India and Ceylon (now Sri Lanka), the writer takes us on a journey through the political, administrative and social structures of this period. Much remains a mystery of the ancient Indian land before the classical civilizations of the Mauryan and Gupta empires emerged. Lectures on the Ancient History of India discusses the culture, practices, sciences and arts of society during that time, revealing a country that was far more advanced in relation with the rest of the world. Keeping the valuable matters in mind this book will serve a great purpose to the students of history.