May I get arrears too if worked on contract in july 07

i am self Ajit Raj. i am working as PRT in a Army school
i am working in this school since 9 July 2007 as contracted / term based (for one year)on pay scale 4500-125-7000 with all allowance(DP+DA+TA+CCA+HRA+MA).
In MAY month (16 MAY 2008) My service become regular based with same pay scale (without any brake of my service).
sir/mam i want know form you........................
My Question .............
1) I am eligible for take arrears form 9 July 2007 to 14 May 2008.
please reply me sir/mam............
it is urgent for not only me near about 20 teacher in my school where i am working.
Ajit Raj,PRT