Section 96(3)(a) in The Delhi School Education Rules, 1973
(a)in the case of recruitment of the head of the school,:-(i)the Chairman of the managing committee;(ii)in the case of an unaided school, an educationist is nominated by the managing committee, and an educationist nominated by the Director;(iii)in the case of an aided school, two educationists nominated by the Director, out of whom at least one shall be a person having experience of school education;(iv)a person having experience of the administration of schools, to be nominated, in the case of an unaided school by the managing committee, or in the case of an aided school, by the Director;