Section 29(1)(b) in The Dibrugarh University Act, 1965
(b)In making recommendations for the appointment of Professors of the University the Selection Committee shall co-opt the Head of Department concerned, if he is a Professor, one Professor of the Department to be nominated by the Vice-Chancellor and three persons not in the service of the University to be nominated by the Executive Council out of a panel of not less than five names of persons recommended by the Academic Council, who have special knowledge of the subject for which the Professor is to be selected.