A week after declining to an 18-months low, food inflation rose marginally to 8.69 per cent for the week ended November 27 on back of rise in prices of rice, onions, fruits and milk. Food inflation in the previous week stood at 8.60 per cent, which was the lowest since May last year. During the week under review, rice became costlier by 1.60 per cent on an annual basis, according to the government data released today. Cereals overall also became dearer by 0.66 per cent, while food items like egg, meat and fish rose by 16.16 per cent year-on-year. In vegetables segment, onions were expensive by 25.48 per cent.