State Bank of Mysore slashes PLRBS Reporter / Bangalore November 07, 2008, 15:16 ISTState Bank of Mysore (SBM), Bangalore-based associate bank of SBI group, has revised its benchmark prime lending rate (PLR) downwards by 75 basis points from 14.25 per cent to 13.50 per cent, with effect from November 10, 2008, the bank informed BSE.