K. Vinod Chandran, J.

1. The three Writ Petitions more or less agitate the same cause, but on different aspects. For convenience, W.P.(C) No. 19948 of 2013 is referred to unless otherwise specifically noticed. The petitioner is a Headmaster in the High School section under the 4th respondent. The 4th respondent was granted Higher Secondary Section in the academic year 2010-2011 by Ext. P13 dated 24.10.2011. Teaching posts were, sanctioned in many aided Higher Secondary Schools, including the 4th respondent School. 146 posts of Principals were also sanctioned. The sanction related back to the date 06.08.2011. At the time when the Government Order was issued, there were none qualified in the Higher Secondary section to be posted as Principal, since the minimum experience required is 12 years as a Higher Secondary School Teacher (H.S.S.T.) as per Chapter XXXII of the Kerala Education Rules, 1959 (K.E.R.). Though the petitioner was initially appointed as Principal, when H.S.S.T.'s joined the School, the petitioner was reverted as Headmaster and one of the H.S.S.S.T. (Juniors) was appointed as Teacher-in-charge, on the senior H.S.S.T. relinquishing her claim. The said teacher-i