Ind. Code § 6-1.1-24-12

Sec. 12. Whenever real property is sold more than once under this chapter, the purchaser at the later sale acquires a first and prior lien on the real property as against the purchaser at the prior sale. The issuance of a certificate of sale, the execution and delivery of a deed for the real property to the purchaser at the prior sale, or the recording of such a deed does not affect the priority established in this section.