Thanks a lot GPGarainda for givinng information..
@Nibaran
For arrear you dont need any separate G.O. You are eligible to get incremental benefit on completion of B.Ed form the following day of the last date of examination, both theoritical and practical. And if you did not already receive it, you will get as arrear. Thats it. The Two G.O.s In This Post will suffice your need, I think.