The cause of the fire, which occurred on Wednesday last, is yet to be ascertained, sources said adding there was no report of any casualty.
Mabira is a small island village of about 20 households surrounded by the river Lohit and Teang under Chowkham circle.
Working president of Khampti-Singpho Council (KSC), circle officer, Chowkham and others visited the spot to assess the damage caused by the fire.
State Education Minister Chowna Mein, local legislator C T Mein have contributed some cash as immediate relief, sources added.