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 Jigs & Fixture [1315010004] Manufactured products

Linked values: from May 2026 = WPI 2022-23 [1315010009] x 1.4505 (item linking factor, ratio of FY 2024-25 geometric means).

MonthIndexChange on previous month Change over 12 monthsWPI all commoditiesSource
Sep 2026155.10 +5.3 +12.07 % 172.1 linked (2022-23 × 1.4505)
Aug 2026149.80 -2.2 +8.24 % 169.5 linked (2022-23 × 1.4505)
Jul 2026152.00 +1.3 +9.91 % 168.3 linked (2022-23 × 1.4505)
Jun 2026150.70 -0.3 +9.12 % 168.8 linked (2022-23 × 1.4505)
May 2026151.00 +11.4 +9.58 % 168.5 linked (2022-23 × 1.4505)
Apr 2026139.60 +3.2 +1.23 % 167.6 OEA
Mar 2026136.40 +3.7 -1.80 % 161.2 OEA
Feb 2026132.70 +0.7 -1.99 % 158.4 OEA
Jan 2026132.00 -3.6 -3.37 % 157.6 OEA
Dec 2025135.60 -2.3 -2.38 % 157.2 OEA
Nov 2025137.90 -0.4 -0.93 % 156.2 OEA
Oct 2025138.30 -0.1 -1.14 % 155.1 OEA
Sep 2025138.40 0.0 +0.58 % 155.0 OEA
Aug 2025138.40 +0.1 +0.58 % 155.2 OEA
Jul 2025138.30 +0.2 +0.58 % 154.4 OEA
Jun 2025138.10 +0.3 +0.36 % 153.7 OEA
May 2025137.80 -0.1 -0.07 % 153.7 OEA
Apr 2025137.90 -1.0 +0.15 % 154.2 OEA
Mar 2025138.90 +3.5 +0.65 % 154.8 OEA
Feb 2025135.40 -1.2 -2.03 % 154.9 OEA
Jan 2025136.60 -2.3 -2.01 % 155.0 OEA
Dec 2024138.90 -0.3 - 155.7 OEA
Nov 2024139.20 -0.7 - 156.4 OEA
Oct 2024139.90 +2.3 - 156.7 OEA
Sep 2024137.60 0.0 - 154.7 OEA
Aug 2024137.60 +0.1 - 154.4 OEA
Jul 2024137.50 -0.1 - 155.3 OEA
Jun 2024137.60 -0.3 - 154.0 OEA
May 2024137.90 +0.2 - 153.5 OEA
Apr 2024137.70 -0.3 - 152.9 OEA
Mar 2024138.00 -0.2 - 151.4 OEA
Feb 2024138.20 -1.2 - 151.2 OEA
Jan 2024139.40 - - 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.