Expensive fruits and vegetables pushed up wholesale and retail inflation rates in March. While wholesale inflation in March rose to a three-month high of 5.7 per cent, retail inflation inched up to 8.31 per cent after softening for three straight months since December. The wholesale price index rose in March due to a spurt in prices of food items such as potato, onion and fruits.The Reserve Bank of India, which has been refraining from cutting rates because of heightened inflation, may wait for some more time, to take a view in the backdrop of the slowing economy.WPI inflation, which had been declining since December, had eased to a nine-month low of 4.68 per cent in February, according to government data released today.