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 Wooden splint [1307010003] Manufactured products

Linked values: from May 2026 = WPI 2022-23 [1307010004] x 1.2553 (item linking factor, ratio of FY 2024-25 geometric means).

MonthIndexChange on previous month Change over 12 monthsWPI all commoditiesSource
Sep 2026159.40 0.0 +11.31 % 172.1 linked (2022-23 × 1.2553)
Aug 2026159.40 +0.9 +12.65 % 169.5 linked (2022-23 × 1.2553)
Jul 2026158.50 +3.6 +12.73 % 168.3 linked (2022-23 × 1.2553)
Jun 2026154.90 +5.5 +11.04 % 168.8 linked (2022-23 × 1.2553)
May 2026149.40 -0.1 +7.33 % 168.5 linked (2022-23 × 1.2553)
Apr 2026149.50 +1.2 +7.71 % 167.6 OEA
Mar 2026148.30 +0.8 +6.84 % 161.2 OEA
Feb 2026147.50 +1.2 +6.65 % 158.4 OEA
Jan 2026146.30 +2.3 +7.10 % 157.6 OEA
Dec 2025144.00 +0.4 +5.19 % 157.2 OEA
Nov 2025143.60 +0.7 +5.20 % 156.2 OEA
Oct 2025142.90 -0.3 +3.33 % 155.1 OEA
Sep 2025143.20 +1.7 +2.73 % 155.0 OEA
Aug 2025141.50 +0.9 +2.09 % 155.2 OEA
Jul 2025140.60 +1.1 +2.55 % 154.4 OEA
Jun 2025139.50 +0.3 +2.72 % 153.7 OEA
May 2025139.20 +0.4 +4.50 % 153.7 OEA
Apr 2025138.80 0.0 +4.20 % 154.2 OEA
Mar 2025138.80 +0.5 +3.58 % 154.8 OEA
Feb 2025138.30 +1.7 +3.13 % 154.9 OEA
Jan 2025136.60 -0.3 +2.09 % 155.0 OEA
Dec 2024136.90 +0.4 - 155.7 OEA
Nov 2024136.50 -1.8 - 156.4 OEA
Oct 2024138.30 -1.1 - 156.7 OEA
Sep 2024139.40 +0.8 - 154.7 OEA
Aug 2024138.60 +1.5 - 154.4 OEA
Jul 2024137.10 +1.3 - 155.3 OEA
Jun 2024135.80 +2.6 - 154.0 OEA
May 2024133.20 0.0 - 153.5 OEA
Apr 2024133.20 -0.8 - 152.9 OEA
Mar 2024134.00 -0.1 - 151.4 OEA
Feb 2024134.10 +0.3 - 151.2 OEA
Jan 2024133.80 - - 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.