2.The brief facts leading to the filing of these Writ Petitions are, there are posts of Headmaster and Headmistress in the Higher Secondary Schools in the Tamil Nadu Higher Secondary Educational Service under the 1st respondent Department, viz., the School Education Department, Government of Tamil Nadu. The said posts are Class I posts in the scale of pay of Rs.15,600/- - Rs.39,100/- + GP Rs.5400/- . Recruitment to the said post is governed by the Rules framed under the Proviso to Article 309 of the Constitution of India, vide G.O.Ms.No.14, School Education (SE2(1)) Department dated 30.01.2020, known as ' Special Rules for the Tamil Nadu Higher Secondary Educational Service '. As per the same, appointment to the said post is firstly by way of transfer from the category of Headmasters/Headmistress of Government High Schools in Class V of the Tamil Nadu School Education Service and secondly by way of promotion from Class II and Class III of the Tamil Nadu Higher Secondary Educational Service. Class II consists of the Post Graduate Assistants in academic subjects and the Post Graduate Assistants in languages. Class III consists of District Inspector of Physical Education, and Physical Directors of Higher Secondary Schools. Rule 2 (b) provides a quota for both