Premium on Redemption of Debentures is generally provided at which point of time in the books?

At the time of Issue of debentures At the time of Redemption of debentures As per the time decided by SEBI None of the abobe

At the time of Issue of debentures

Premium payable on redemption of debentures is accounted at the time of issue of debentures because of Prudence or Conservatism principle.