Those who thinks Mathematics and Science is origin in Greek or Rome should read this book, all these knowledge were flown from India to West via Arabs or Persian. History was Hellenized during the Crusades. Knowledge was theologically sanitized during the Inquisition, and the accompanying religious intolerance in the rest of Europe. “Pagan” knowledge was again appropriated by Europeans who dared not acknowledge it. The appropriated knowledge was reinterpreted to make also the contents theologically correct. Racist and colonial historians built on this legacy of glorifying themselves and belittling others. For this purpose, they used (and continue to use) double standards of evidence to claim “independent rediscovery” in one direction, and transmission in the other direction.
As Rajiv Malhotra rightly said, "The history of India is not others coming in and invading, giving us things and changing us, but also how Indian knowledge has been exported, how the history of India is present also in the history of Europe and China and so on".
This book is short but contained lot of heavy information.