Kalita is an ethnic group or a caste of Assamese Hindus belonging to the state of Assam in North East India.
[web 2] Kalita represents a category in the tribe-caste continuum of Assamese society that is placed between the Keot on one side and Ganak and Brahmin on the other.
Guha has found similarities between some surnames of "Alpine Nagar Brahmins" of Gujarat with those of North East India, as referred in the Nidhanpur land grants of Kamarupa King Bhaskaravarman (6th century A.D.) such as Datta, Dhara, Deva, Nandi, Sena, and Vasu, etc.
Choudhuri, M. Neog, B. K. Kakati made speculations by drawing the references of Greek records, words like Kakatiai, Kalaiai, Kaltis, Koudontai, Kudutai, Gurucharitis and few early religious literatures to establish the Kalitas through materials not based on ethnology or anthropology.
In this process, a tribal neophyte usually belonging to Kachari, Garo, Lalung, Mikir peoples,[19] takes initiation in a Sattra under a Guru and successively discards his own beliefs and habits to be replaced by the Hindu social code.