Indiana Code Title 11. Corrections § 11-13-9-2

(1) the inmate has remained in the continuous custody of the department for the requisite length of time;  or

(2) the inmate would have remained in the continuous custody of the department for the requisite length of time, but:

(1) twenty-five (25) consecutive years;

(2) twenty-four (24) consecutive years if the inmate has received one (1) year of educational credit under IC 35-50-6-3.3;

(3) twenty-three (23) consecutive years if the inmate has received two (2) years of educational credit under IC 35-50-6-3.3;

(4) twenty-two (22) consecutive years if the inmate has received three (3) years of educational credit under IC 35-50-6-3.3;  or

(5) twenty-one (21) consecutive years if the inmate has received four (4) years of educational credit under IC 35-50-6-3.3;