Section 9(3) in The Assam Secondary Education (Provincialised) Service Rules, 1982
(3)A member of the service either belonging to Grade II or to Grade III and having 15 years continuous teaching experience or to Grade IV and having 17 years continuous teaching experience shall be eligible for selection for the post of Principal in Grade I of the service :Provided that in all the cases preference shall be given to candidates having a Post-Graduate Degree in Teaching/a degree in Post-Graduate Teaching (B.Ed. or B.T.).
