The departments affected included Sociology, Psychology, Political Science, Economics, Accounting and Business Administration as well as some offices of lecturers from the Faculty of Arts.
The fire also consumed the office of the dean, Faculty of Social Science as well as result sheets and yet to be marked exam scripts of undergraduate students.
Following the incident, the university authorities has postponed ongoing first semester examinations.
In a statement issued in Jos on Sunday, the Registrar, Mr Monday Danjem, that the decision was taken pending an emergency Senate meeting scheduled for Monday, Oct. 10. He urged students and members of the university community to remain calm and go about their normal businesses as the situation has been brought under control.