wpi linked

WPI spliced across bases into one series on base 2022-23=100 — USER-LINKED, NOT OFFICIAL. Only All Commodities and the three major groups (Primary, Fuel & Power, Manufactured), the only levels OEA publishes linking factors for. Each older segment is divided by the product of OEA's own factors (2022-23←2011-12: All 1.53 / Primary 1.71 / Fuel 1.65 / Mfg 1.44, ratio of geometric means over FY2024-25;