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 Bitumen [1202000007] Fuel and power

Linked values: from May 2026 = WPI 2022-23 [1202010007] x 1.3138 (item linking factor, ratio of FY 2024-25 geometric means).

MonthIndexChange on previous month Change over 12 monthsWPI all commoditiesSource
Sep 2026178.50 +5.7 +40.77 % 172.1 linked (2022-23 × 1.3138)
Aug 2026172.80 -19.7 +31.81 % 169.5 linked (2022-23 × 1.3138)
Jul 2026192.50 -7.6 +44.30 % 168.3 linked (2022-23 × 1.3138)
Jun 2026200.10 -13.1 +46.92 % 168.8 linked (2022-23 × 1.3138)
May 2026213.20 +22.2 +56.19 % 168.5 linked (2022-23 × 1.3138)
Apr 2026191.00 +53.2 +38.31 % 167.6 OEA
Mar 2026137.80 +3.2 +2.07 % 161.2 OEA
Feb 2026134.60 -0.1 -1.25 % 158.4 OEA
Jan 2026134.70 +6.1 -1.82 % 157.6 OEA
Dec 2025128.60 +9.3 -4.24 % 157.2 OEA
Nov 2025119.30 -1.7 -6.50 % 156.2 OEA
Oct 2025121.00 -5.8 +1.51 % 155.1 OEA
Sep 2025126.80 -4.3 +6.02 % 155.0 OEA
Aug 2025131.10 -2.3 +6.07 % 155.2 OEA
Jul 2025133.40 -2.8 +13.73 % 154.4 OEA
Jun 2025136.20 -0.3 +18.02 % 153.7 OEA
May 2025136.50 -1.6 +16.27 % 153.7 OEA
Apr 2025138.10 +3.1 +18.24 % 154.2 OEA
Mar 2025135.00 -1.3 +16.18 % 154.8 OEA
Feb 2025136.30 -0.9 +18.11 % 154.9 OEA
Jan 2025137.20 +2.9 +20.88 % 155.0 OEA
Dec 2024134.30 +6.7 - 155.7 OEA
Nov 2024127.60 +8.4 - 156.4 OEA
Oct 2024119.20 -0.4 - 156.7 OEA
Sep 2024119.60 -4.0 - 154.7 OEA
Aug 2024123.60 +6.3 - 154.4 OEA
Jul 2024117.30 +1.9 - 155.3 OEA
Jun 2024115.40 -2.0 - 154.0 OEA
May 2024117.40 +0.6 - 153.5 OEA
Apr 2024116.80 +0.6 - 152.9 OEA
Mar 2024116.20 +0.8 - 151.4 OEA
Feb 2024115.40 +1.9 - 151.2 OEA
Jan 2024113.50 - - 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.