The history of India written during the colonial era begins with the Indus Valley Civilization. When this civilization declined, Aryans had invaded or migrated to India who wrote Vedas. In fact, we do not have any chronological history before 500 BCE that’s what modern historians and archaeologists record. But the advanced research based on archaeological, archaeo-astronomical and literary evidence suggests otherwise. India’s history is continuous since the beginnings of Holocene and we Indians proudly call our history as ITIHASA….The word itihAsa splits as iti-ha-Asa and means thus-verily-happened.