New Delhi: Retail inflation rose to 5.03% in February mainly on account of higher food prices, government data showed on Friday.The consumer price index (CPI)-based retail inflation was at 4.06% in January.The rate of price rise in the food basket accelerated to 3.87% in February, as against 1.89% in the preceding month, as per data released by the National Statistical Office (NSO).Inflation in ‘fuel and light’ category remained elevated at 3.53% during the month vis-à-vis 3.87% in January.The Reserve Bank of India, which mainly factors in the retail inflation while arriving at its monetary policy, has been asked to keep CPI inflation at 4% with a margin of 2% on either side.