Rising for the second consecutive month, retail inflation has surged 9.90 per cent in November. This has been driven mainly by rising prices of food items such as sugar, vegetables, edible oil and clothing.The retail inflation was 9.75 per cent in October and 9.73 per cent in September.The highest price rise in November was seen in the oil and fats segment with an annual inflation of 17.67 per cent,as per the Consumer Price Index (CPI) data released today.