Indiana is one of the few states where you need a permit to carry, period. In other words, as long as you have an Indiana carry permit, you can carry openly or concealed. Without a permit, you can't carry at all.
I used to live in Indiana, and had a carry permit. I OCed much of the time, and never had a word said to me. Maybe they were all afraid of me. :wink: Now I live in Michigan, but I still visit Indiana, and I OC there with no trouble.