It is a statistical measure of the average change in the consumer prices of a predetermined basket of goods and services customarily purchased/consumed by inhabitants of country belonging to specified income groups in the selected geographical areas over a fixed period of time. PBS is compiling and disseminating Urban and Rural CPIs. Urban CPI (UCPI) covers 68 markets in 35 cities/urban centers of the country. Prices of 356 consumer items are collected from open market and used for computation of indices on monthly basis. Rural CPI (RCPI) covers 27 markets in 27 rural centers of the country. Prices of 244 consumer items are collected from open market and used for computation of indices on monthly basis.