The book deals with the early political history of ancient India. It is basically a text book, but many times research analysis has also been done. This book is the first part, so the time period from Vedic period to Shunga period has been included in it. Political history is negligible in the Vedic period and the author puts mythology in the category of mythical stories. Therefore, the evidences of the Puranas have been taken very carefully, so that the damage to the international standards of historiography is minimized. In many places, there is also a critical presentation reviewing the history already written. The author has been teaching this subject for the last 21 years at the postgraduate level. Therefore, many research points have also been raised in this. Apart from the students of undergraduate and postgraduate level in ancient history, students preparing for competitive examinations will also be benefited from this book. The subject of the book is taught in many universities, so students of different universities can benefit from it. As it has been said that the book is especially for the scholars of history, so before studying the book, it is also necessary for the reader to have knowledge of history, otherwise it is difficult to understand the review and criticism made by the author in many places can. Thank the reader for choosing to read the book.