India's retail inflation rose to 6.09% in October, moving above the RBI's 6% upper tolerance limit and coming in above the CNBC-TV18 poll estimate. India's retail inflation, measured by the Consumer Price Index , rose to a two-year high of 6.09% in October, breaching the Reserve Bank of India's upper tolerance limit of 6% and coming in marginally above the CNBC-TV18 poll estimate of 6%. Inflation had stood at 5.54% in September.