1. In all these cases, the petitioners are aided Schools and are challenging the order rejecting sanction of additional posts and pray for sanction of teaching and non-teaching posts.

2. As the issue involved in these cases are identical, all these writ petitions are dealt with by this common order.

3. Brief facts of each case in nutshell, necessary for disposal of these writ petitions are as follows:

(I) W.P.No.18827 of 2011: (a)This writ petition is filed by St.Annes Girls Higher Secondary School, Cuddalore, which is one of the School established and is being administered by the congregation of the Immacuate Heart of Mary, Pondicherry. The congregation and all its institutions including the petitioner school are declared as Christian Religious Minority Educational Institutions by the Division Bench of this Court in W.P.No.652 of 1975 dated 24.9.1976 and the same is implemented by the Department by order dated 20.11.1976.

(b) The petitioner School was established in the year 1882 as a Primary School and upgraded as a High School in the year 1935, again upgraded as Higher Secondary School in the year 1978 when the Plus Two pattern of education was introduced in the Stat