Ind. Code § 23-17-6-4
Note: This version of section effective until 1-1-2018. See also following repeal of this chapter, effective 1-1-2018.
(b) If a corporation does not have a registered agent or the agent cannot with reasonable diligence be served, the corporation may be served by registered or certified mail, return receipt requested, addressed to the secretary of the corporation or other executive officer under Trial Rule 4.6(a)(1) at the corporation's principal office. Service is perfected under this subsection on the earliest of the following:
Sec. 4. (a) A corporation's registered agent is the corporation's agent for service of process, notice, or demand required or permitted by law to be served on the corporation.
As added by P.L.179-1991, SEC.1.