Barclays' CEO grilled in Parliament over Libor charges

London: A day after quitting as Barclays\' chief executive over the charges of manipulating global benchmark lending rates, Bob Diamond on Wednesday grilled in Parliament, a news wire reported.Diamond appeared before the cross-party Treasury Select Committee.Last week, Barclays had agreed to pay 290 million pounds worth penalties to the US and the UK authorities towards settling charges of attempting to manipulating Libor and Euribor rates, the global benchmark rates for lending.Libor is based on rate submissions from a relatively small and select panel of major banks, including Barclays, and is calculated and published daily for several different currencies by the British Banker\'s Association (BBA).Generally, it reflects the cost of borrowing unsecured funds in the London interbank market.Euribor, also calculated in a similar manner, measures the cost of borrowing in the Economic and Monetary Union of the European Union.The top management has come under intense pressure, including political, after the Barclays was slapped with 290 million pound (USD 451 million) fine by the US and the UK authorities to settle the charges of manipulating global benchmark lending rates.