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 Castor Seed [1102020007] Primary articles

Linked values: from May 2026 = WPI 2022-23 [1102020005] x 1.3396 (item linking factor, ratio of FY 2024-25 geometric means).

MonthIndexChange on previous month Change over 12 monthsWPI all commoditiesSource
Sep 2026140.70 +8.1 +13.83 % 172.1 linked (2022-23 × 1.3396)
Aug 2026132.60 +1.3 +6.94 % 169.5 linked (2022-23 × 1.3396)
Jul 2026131.30 +4.6 +4.04 % 168.3 linked (2022-23 × 1.3396)
Jun 2026126.70 +2.5 +3.26 % 168.8 linked (2022-23 × 1.3396)
May 2026124.20 +2.1 +6.24 % 168.5 linked (2022-23 × 1.3396)
Apr 2026122.10 -0.9 +5.08 % 167.6 OEA
Mar 2026123.00 +0.8 +2.93 % 161.2 OEA
Feb 2026122.20 -0.4 +1.50 % 158.4 OEA
Jan 2026122.60 -5.2 +2.08 % 157.6 OEA
Dec 2025127.80 +1.2 +7.85 % 157.2 OEA
Nov 2025126.60 +3.7 +4.46 % 156.2 OEA
Oct 2025122.90 -0.7 -0.65 % 155.1 OEA
Sep 2025123.60 -0.4 +5.01 % 155.0 OEA
Aug 2025124.00 -2.2 +8.30 % 155.2 OEA
Jul 2025126.20 +3.5 +12.18 % 154.4 OEA
Jun 2025122.70 +5.8 +14.46 % 153.7 OEA
May 2025116.90 +0.7 +10.60 % 153.7 OEA
Apr 2025116.20 -3.3 +7.00 % 154.2 OEA
Mar 2025119.50 -0.9 +7.46 % 154.8 OEA
Feb 2025120.40 +0.3 +11.07 % 154.9 OEA
Jan 2025120.10 +1.6 +10.28 % 155.0 OEA
Dec 2024118.50 -2.7 - 155.7 OEA
Nov 2024121.20 -2.5 - 156.4 OEA
Oct 2024123.70 +6.0 - 156.7 OEA
Sep 2024117.70 +3.2 - 154.7 OEA
Aug 2024114.50 +2.0 - 154.4 OEA
Jul 2024112.50 +5.3 - 155.3 OEA
Jun 2024107.20 +1.5 - 154.0 OEA
May 2024105.70 -2.9 - 153.5 OEA
Apr 2024108.60 -2.6 - 152.9 OEA
Mar 2024111.20 +2.8 - 151.4 OEA
Feb 2024108.40 -0.5 - 151.2 OEA
Jan 2024108.90 - - 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.