Wholesale Price Index (WPI) is based on the price prevailing in the wholesale markets or the price at which bulk transactions are made.
It includes three components:
Manufactured products = 64.2%
Primary articles = 22.6%
Fuel and power = 13.1% now
Base year has been changed from 2004-05 to 2011-12.
The Wholesale Price Index is released by the Office of Economic Advisor (OEA), Department of Industrial Policy and Promotion, Ministry of Commerce and Industry.