An educational institution can be said to be an 'authority' or 'person' within the meaning of Article 226 of the Constitution of India

https://indiankanoon.org/doc/1999806/
Delhi High Court
Vikramaditya Jain (Minor) vs Union Of India And Others on 14 September, 1998
Equivalent citations: 1998VIAD(DELHI)386, AIR1999DELHI232, 1998(47)DRJ410, ILR1998DELHI883, AIR 1999 DELHI 232, (1998) 47 DRJ 410 (1999) 2 SCT 462, (1999) 2 SCT 46218.

An educational institution can be said to be an 'authority' or 'person' within the meaning of Article 226 of the Constitution of India where it has been established and is run by the State, or where it is not so established and is not run by the State but is funded wholly or partly, as the case may be, by the State, or where it is not even so funded but is affiliated or recognized by the State or by the educational authorities of the State. In such a situation the State or the authority granting recognition or affiliation can ensure observance or compliance of the conditions by the educational institution as are necessary to the maintenance of the requisite standards of education or to accord fair and equal treatment in the matters of admission of students and in the matter of regulation of conditions of service of teachers. Where a private school is funded or aided by the State or is affiliated or recognized by the State or an authority or an instrumentality of the State, an element of public interest is created in the performance of the duties by the school, its management and its teachers. Such an educational institution can only be considered to be an authority or a person for the purposes of Article 226 of the Constitution of India.