Historical and mythological records indicate that the region corresponding to modern-day Assam was known by a different name during the epic period. This ancient name is significant in understanding the historical geography mentioned in classical Indian literature.
The name associated with Assam during the epic period was Pragjyotisha. This name appears in various ancient texts, referencing the kingdom and its cultural significance.
While other terms like Kherai, Kalika, and Bathow are related to Assam's cultural or religious history, Pragjyotisha is the specific geographical and political designation from the epic era.