Ind. Code § 5-10.2-5-39
(a) The pension portion (plus postretirement increases to the pension portion) provided by employer contributions of the monthly benefit payable after December 31, 2005, to a member of the Indiana state teachers' retirement fund (or to a survivor or beneficiary of a member of the Indiana state teachers' retirement fund) who retired or was disabled:
(b) The increases specified in this section:
As added by P.L.246-2005, SEC.52.