For these reasons, Assam in the medieval period became a fertile soil for the Tantric worship.Of the four pithas or sacred places, namely Kamakhya,Srihatta, Purnagiri and Uddiyana’ associated with Buddhist Tantric worship and mentioned in Sadhanamala, two namely, Kamakhya and Srihatta belonged to Assam. The temple of Kamakhya in Gauhati was, and still is considered to be, the most sacred of the Saktipithas in India. It is a place of the Mother Goddess, Kamakhya, and seems to have been the scene of tribal worship.
The Garos with their matriarchal form of society are generally mentioned as having been the guardians of this religious centre prior to its reclamation by the Hindus under the care of King Virasimha.
12. Gait: A History of Assam; p. 58.