The Reserve Bank of India (RBI) is changing the rules on how commercial banks can determine and disclose interest rates of bulk fixed deposits (FD). The new FD rules will come into effect on October 1, 2026. Under the new rules, banks need to disclose their FD rates in advance. They also need to disclose their bulk deposit rates everyday at 10 am in the morning. While the rules instruct banks to keep the same rates for similar bulk deposits, banks can differentiate bulk deposit rates based on LCR treatment.