Escalation Bill Price variation for RA and final bills · index-based formula

Price index database

Official indices: CPI-IW for the Labour Bureau's centres (base 2016 = 100, from January 2024) and the Wholesale Price Index for every item - the current series (base 2022-23 = 100, from April 2023) and the former series (base 2011-12 = 100, from January 2024 to April 2026, continued by linking). Escalation bills take their base and current indices from here.

Latest official month in the database: CPI-IW 2026-08, WPI 2022-23 2026-09, WPI 2011-12 2026-04 (linked to 2026-09). Source: Office of the Economic Adviser, DPIIT - Wholesale Price Index (base 2011-12=100) - eaindustry.nic.in. The OEA stopped this series after April 2026. Later months are linked: the 2022-23 index of the same item multiplied by a linking factor - the OEA's own factors for All commodities (1.53), Primary articles (1.71), Fuel & power (1.65) and Manufactured products (1.44), and for other items the ratio of the geometric means of their FY 2024-25 indices in the two series, the method the OEA used. Items with no clear successor in the new series are not linked; use the 2022-23 series for them. Values entered by hand are highlighted and kept when you update.

WPI Tapioca [1101020104] Primary articles

Linked values: from May 2026 = WPI 2022-23 [1101020109] x 2.7791 (item linking factor, ratio of FY 2024-25 geometric means).

MonthIndexChange on previous month Change over 12 monthsWPI all commoditiesSource
Sep 2026264.80 +6.9 -8.44 % 172.1 linked (2022-23 × 2.7791)
Aug 2026257.90 +11.1 -11.95 % 169.5 linked (2022-23 × 2.7791)
Jul 2026246.80 +2.5 -10.74 % 168.3 linked (2022-23 × 2.7791)
Jun 2026244.30 +5.3 -14.55 % 168.8 linked (2022-23 × 2.7791)
May 2026239.00 -40.3 -19.53 % 168.5 linked (2022-23 × 2.7791)
Apr 2026279.30 +5.9 -8.84 % 167.6 OEA
Mar 2026273.40 +1.7 -8.29 % 161.2 OEA
Feb 2026271.70 +3.0 +5.60 % 158.4 OEA
Jan 2026268.70 -6.9 +8.04 % 157.6 OEA
Dec 2025275.60 -3.9 +12.40 % 157.2 OEA
Nov 2025279.50 -0.6 +12.84 % 156.2 OEA
Oct 2025280.10 -9.1 +12.54 % 155.1 OEA
Sep 2025289.20 -3.7 +14.94 % 155.0 OEA
Aug 2025292.90 +16.4 +19.94 % 155.2 OEA
Jul 2025276.50 -9.4 +23.38 % 154.4 OEA
Jun 2025285.90 -11.1 +29.43 % 153.7 OEA
May 2025297.00 -9.4 +29.13 % 153.7 OEA
Apr 2025306.40 +8.3 +32.53 % 154.2 OEA
Mar 2025298.10 +40.8 +30.12 % 154.8 OEA
Feb 2025257.30 +8.6 +11.05 % 154.9 OEA
Jan 2025248.70 +3.5 +6.78 % 155.0 OEA
Dec 2024245.20 -2.5 - 155.7 OEA
Nov 2024247.70 -1.2 - 156.4 OEA
Oct 2024248.90 -2.7 - 156.7 OEA
Sep 2024251.60 +7.4 - 154.7 OEA
Aug 2024244.20 +20.1 - 154.4 OEA
Jul 2024224.10 +3.2 - 155.3 OEA
Jun 2024220.90 -9.1 - 154.0 OEA
May 2024230.00 -1.2 - 153.5 OEA
Apr 2024231.20 +2.1 - 152.9 OEA
Mar 2024229.10 -2.6 - 151.4 OEA
Feb 2024231.70 -1.2 - 151.2 OEA
Jan 2024232.90 - - 151.2 OEA

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For a month not yet in the database (e.g. from the latest press release). Updates from the website do not replace hand-entered values; enter the official figure here to correct one.