Ind. Code § 8-4-1-12

Sec. 12. The president and a majority of the directors, within thirty (30) days after the payment of the last instalment of the capital stock so fixed and limited by the company, shall make a certificate, stating the amount of capital stock so fixed and paid in, which certificate shall be signed by the president and a majority of the directors, and sworn to by the president and secretary, and they shall, within the said thirty (30) days, file and record the same in the office of the secretary of state.