By Lars Mucklejohn Barclays has announced that it has agreed with Tesco to acquire the supermarket’s retail banking business for around £600m. The Big Four bank will form a 10-year partnership with Tesco to distribute credit cards, unsecured personal lending and deposits using the grocer’s brand. The news comes after months of speculation and media reports that Tesco was reviewing a sale of its banking arm, in line with a wave of consolidation sweeping through the mid-sized banking sector. The transaction involves the acquisition of approximately £8.3 billion of unsecured lending balances with…