IDBI bank announced on Wednesday issuance of an additional tier-I bonds in order to raise Rs 1,500 crore. IDBI Bank proposes to issue an additional tier-I bond amounting to Rs 1,500 crore, the company said in a statement. The bonds will be allotted by the bank from August 30. Shares of of IDBI Bank closed down 0.14% at Rs 71.90 on BSE, ahead of the announcement.