Guwahati's myths and history go back several thousands of years. Although the date of the city's beginning is unknown, references in the epics, Puranas, and other traditional histories, lead many to assume that it is one of the ancient cities of Asia.
Epigraphic sources place the capitals of many ancient kingdoms in Guwahati. It was the capital of the mythological kingsNarakasura and Bhagadatta according to the Mahabharata. The ancient sakti temple of Goddess Kamakhya in Nilachal hill (an important seat of Tantric and Vajrayana Buddhism), the ancient and unique astrological temple Navagraha in Chitrachal Hill, and archaeological remains in Basista and other locations support the mythological assertions of the city's ancient past.
The Ambari excavations trace the city to the 6th century AD. It was known as Pragjyotishpura and Durjoya in different periods and was the capital under the Varman Dynasty and the Pala dynasties of the Kamarupa kingdom. Descriptions by Xuanzang (Hiuen Tsang) reveal that during the greatest Varman king Bhaskar Varman (7th century AD), the city stretched for about 30 li (15 km) and was probably the principal base for his strong naval force (30,000 war-boats, with officers who were knowledgeable of the sea-routes from the Indian Ocean to China - Xuanzang). The city remained as the capital of Assam till the 10th-11th century AD under the rulers of the Pala dynasty. Excavations in Ambari and the brick walls and houses excavated during construction of the present Cotton College's auditorium suggest that it was a city of great size with economic and strategic importance until the 9th-11th century AD.
During medieval times between the 12th and 15th centuries AD, after the destruction of the Kamata kingdom, the city lost its earlier glory and became mainly a strategic outpost of the Koch Hajo and Ahom kingdom. When the western part of the Koch Kingdom (Koch Bihar) fell to theMughals, the eastern half (Koch Hajo) eventually
