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 Adhesive tape (non-medicinal) [1310070005] Manufactured products

Linked values: from May 2026 = WPI 2022-23 [1312030033] x 1.4325 (item linking factor, ratio of FY 2024-25 geometric means).

MonthIndexChange on previous month Change over 12 monthsWPI all commoditiesSource
Sep 2026151.80 +2.8 +11.13 % 172.1 linked (2022-23 × 1.4325)
Aug 2026149.00 -1.3 +8.28 % 169.5 linked (2022-23 × 1.4325)
Jul 2026150.30 +2.0 +8.13 % 168.3 linked (2022-23 × 1.4325)
Jun 2026148.30 +1.2 +7.15 % 168.8 linked (2022-23 × 1.4325)
May 2026147.10 +1.2 +6.90 % 168.5 linked (2022-23 × 1.4325)
Apr 2026145.90 +2.1 +6.03 % 167.6 OEA
Mar 2026143.80 +7.7 +4.81 % 161.2 OEA
Feb 2026136.10 0.0 +0.29 % 158.4 OEA
Jan 2026136.10 -1.0 -0.15 % 157.6 OEA
Dec 2025137.10 +0.6 +0.29 % 157.2 OEA
Nov 2025136.50 -0.3 -0.87 % 156.2 OEA
Oct 2025136.80 +0.2 -1.65 % 155.1 OEA
Sep 2025136.60 -1.0 -0.87 % 155.0 OEA
Aug 2025137.60 -1.4 -1.15 % 155.2 OEA
Jul 2025139.00 +0.6 -1.77 % 154.4 OEA
Jun 2025138.40 +0.8 -3.69 % 153.7 OEA
May 2025137.60 0.0 -1.43 % 153.7 OEA
Apr 2025137.60 +0.4 +0.36 % 154.2 OEA
Mar 2025137.20 +1.5 -0.15 % 154.8 OEA
Feb 2025135.70 -0.6 0.00 % 154.9 OEA
Jan 2025136.30 -0.4 +2.33 % 155.0 OEA
Dec 2024136.70 -1.0 - 155.7 OEA
Nov 2024137.70 -1.4 - 156.4 OEA
Oct 2024139.10 +1.3 - 156.7 OEA
Sep 2024137.80 -1.4 - 154.7 OEA
Aug 2024139.20 -2.3 - 154.4 OEA
Jul 2024141.50 -2.2 - 155.3 OEA
Jun 2024143.70 +4.1 - 154.0 OEA
May 2024139.60 +2.5 - 153.5 OEA
Apr 2024137.10 -0.3 - 152.9 OEA
Mar 2024137.40 +1.7 - 151.4 OEA
Feb 2024135.70 +2.5 - 151.2 OEA
Jan 2024133.20 - - 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.