To redeem your investments in the direct plan of Aditya Birla Sun Life CRISIL IBX AAA Financial Services Index Sep 2027 Fund, you can use their mobile app or desktop webpage. After logging in, you need to select either a specified amount or a specified number of units to redeem. For investments made in the regular plan through Registrar and Transfer Agent (RTA) or Mutual Fund Distributor (MFD), you can submit a duly signed redemption form to the respective RTA/MFD or redeem online through their portal, if available.