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Mahabhutavarman is mentioned in the Harsha Charita as Bhutivarman. As a matter of fact, in line 51 of the Nidhanpur inscription itself Mahabhutavarman is referred to as Bhutivarman. Evidently he was popularly known as Bhutivarman.
He married Vijnanavati and had successor to throne named Chandramukhavarman. He married Bhogavati and had successor to throne named Sthitavarman.
Under his reign, "Kamarupa became a powerful kingdom."
Nagendranath Vasu (1922), The Social History of Kamarupa, P.142
Sen, Sailendra (2013). A Textbook of Medieval Indian History. Primus Books. pp. 37–39. ISBN978-9-38060-734-4.
Further reading
Vasu, Nagendranath, The Social History of Kamarupa
Tripathi, Chandra Dhar, Kāmarūpa-Kaliṅga-Mithilā:a politico-cultural alignment in Eastern India : history, art, traditions, Indian Institute of Advanced Study
Wilt, Verne David, Kamarupa
Majumdar, Ramesh Chandra, Ancient India
Kapoor, Subodh, Encyclopaedia of ancient Indian geography
Sen, Sailendra Nath, Ancient Indian History and Civilization
Kapoor, Subodh, The Indian encyclopaedia: biographical, historical, religious, administrative, ethnological, commercial and scientific
Sarkar, Ichhimuddin, Aspects of historical geography of Prāgjyotiṣa-Kāmarūpa (ancient Assam)
Deka, Phani, The great Indian corridor in the east
Pathak, Guptajit, Assam's history and its graphics
Samiti, Kāmarūpa Anusandhāna, Readings in the history & culture of Assam