Sec. 6. As used in this chapter, "governmental entity" includes the whole or any part of a branch, department, agency, instrumentality, official, or other individual or entity acting under color of law of any of the following:
(1) State government.
(2) A political subdivision (as defined in IC 36-1-2-13).
(3) An instrumentality of a governmental entity described in subdivision (1) or (2), including a state educational institution, a body politic, a body corporate and politic, or any other similar entity established by law.