Section 3(5)(a) in The Maharashtra Employees of Private Schools (Conditions of Service) Rules, 1981
(a)If a suitable teacher possessing qualifications laid down in the foregoing provisions of this rule is not available to fill in the post of a Head of a school, the Management shall, with the prior permission of the Education Officer in case of primary schools, or of the Deputy Director in the case of other schools, advertise the post and select and appoint a person possessing the requisite qualifications and experience.