said school called for applications to fill up the post of B.T. Assistant(English). In response, the writ petitioners had applied and they were selected and appointed as B.T. Assistants by order dated 03.01.2019. Both the writ petitioners were appointed in the permanent sanctioned vacancy that arose due to the retirement of a Secondary Grade Teacher on 31.05.2018 and promotion of a Secondary Grade Teacher on 02.07.2018 respectively. Rule 15(4) of the Tamil Nadu Recognized Private Schools(Regulation) Rules, mandates the management of the school to get prior permission from the appellants to fill up the post. Therefore, the school management had sent the proposal to the first appellant to fill up the post of B.T. Assistant(English). The second respondent school while appointing the Teachers in the sanctioned vacancy has to follow certain conditions viz., (i) communal roster system should be followed as per the procedure laid down in G.O.Ms.No.241 dated 20.10.2007; (ii) Appointment should be made as per the terms contemplated under the Right to Compulsory Education Act, 2009; and (iii) the Teacher should have passed the Teacher's Eligibility Test (TET) (hereinafter referred to as TET). As the posts mentioned above are coming under 'BC' category, the appellants granted prior permission to fill up the post of B.T. Assistant by upgrading the Secondary Grade Teacher Post as B.T. Assistant. It is also not in dispute that at the time of granting permission, the appellants had verified all the documents and granted approval. In spite of the same, order of approval was not passed. Therefore, the writ petitioners filed W.P(MD)Nos.5440 and 5464 of 2020 seeking a Mandamus to approve the appointment. While the said writ petitions were pending, the impugned order of rejection of the proposal was passed on the ground of surplus Teachers working in some other schools by referring to G.O.Ms.No.165 School Education Department dated 17.09.2009. The impugned order also referred to the interim order granted by this Court in W.A(MD)No.76 of 2019 batch. Aggrieved by the order of rejection of the approval, the writ petitions were filed which were allowed by the writ Court. The above writ appeals are directed against the said order.