Amid liquidity tightness in the banking system, certificate of deposit (CD) rates topped 8 per cent for some smaller banks, with rates remaining on the higher side for derivatives loss-hit IndusInd Bank.On Thursday, CSB Bank raised Rs 100 crore via one-year CDs at 8.5 per cent, while Utkarsh Small Finance Bank issued three-month CDs at 8.05 per cent to raise Rs 50 crore.