Wholesale Price Index
Wholesale price index comprises as far as possible all transactions at first point of bulk sale in the domestic market. Provisional monthly WPI for All Commodities is released on 14th of every month (next working day, if 14th is holiday). Detailed item level WPI is put on official website (http://www.eaindustry.nic.in/) for public use. The provisional index is made final after a period of eight weeks/ two months. A Press Note prepared by the Office of the Economic Advisor of the Ministry of Commerce and Industry, accompanies the release and can be viewed from the website of the O/o Economic Advisor, M/o Commerce and Industries. The current series of 2011-12 consists of 117 Primary Articles, 16 Fuel and Power items, and 564 Manufactured Products covering all important items transacted in the economy. The weighing diagram for the WPI series has been derived on the basis of Gross Value of Output. The output values at current prices wherever available at appropriate disaggregation, have been obtained from the National Accounts Statistics published by Central Statistical Organization, Ministry of Statistics & Programme Implementation. The price data are collected on a self-disclosure basis from individual private sector firms and official sources. National Sample Survey Office also facilitates collection of price data from organized manufacturing units.