Malaysia's largest Islamic bank, Bank Islam Malaysia Bhd, is revising its base financing rate (BFR)to 6.85% per annum from 6.6% per annum effective Friday. Bank Islam in a statement on Thursday said the revision is in line with Bank Negara Malaysia's recent move to increase the overnight policy rate (OPR) by 25 basis points to 3.25%. The last revision in Bank Islam's BFR was on May 16, 2011, when the rate was revised from 6.3 % to 6.6%.