The Consumer Price Index (CPI) based inflation has increased to 11 per cent in the month of October 2011 showing an upward trend from the corresponding period last year. Secretary Statistics Division, Asif Bajwa while addressing a monthly briefing on Wednesday said that Sensitive Price Index (SPI) based inflation has increased by 6.5 per cent and Whole Sale Price Index (WPI) based inflation has surged by 15.4 per cent during October 2011 against October 2010. Meanwhile, the CPI based inflation has increased by 1.4 per cent in October as compared to the month of September. In October the SPI and WPI increased by 1.4 per cent and 0.8 per cent over September, last month.