Business Secretary Vince Cable last month stoked tension with the Bank of England by comparing policymakers to the Taliban over the tougher capital rules.
He said its demands that banks must boost the levels of capital they hold to protect against future financial shocks is deterring small business lending and holding back recovery.
Mr Cable said: "One of the anxieties in the business community is that the so-called 'capital Taliban' in the Bank of England are imposing restrictions which at this delicate stage of recovery actually make it more difficult for companies to operate and expand."