During the Alexander's campaign of India, King Poros(or Porus) stated the king of Gangaridai was a man of worthless character and was not held in respect.
Virgil also speaks of the valour of the Gangaridae in his Georgics.
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According to Dr. N.K. Sahu's opinion, the illustrious Ganga Dynasty of Orissa (and also Karnataka, Madras) were the descendants of the Gangaridai people who migrated to South India from Tamluk (Midnapur) in South Bengal.