Explore the deep historical connections between ancient India and Iran. This seminal study meticulously links Zarathushtra and his contemporaries to the Rigveda, presenting pioneering research on common Aryan ancestry and religious divergence. Delve into linguistic and historical evidence that challenges conventional interpretations of India’s ancient past. The book critically examines Zarathushtra’s chronology and the Zarathushtrian calendar, offering invaluable insights for scholars of Indo-Iranian history and Vedic civilization. An essential read for enthusiasts of ancient history, Indian heritage, and comparative religious studies.