The annual consumer price inflation in April accelerated to a three-month high of 8.59 per cent, mainly driven by higher food prices, government data showed on Monday. A Reuters poll had forecast retail inflation would edge up to 8.48 per cent from 8.31 per cent in March. Retail food prices in April rose 9.66 per cent from a year earlier, faster than a provisional 9.10 per cent rise in March.