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 Manufacture of other general-purpose machinery [1318080000] Manufactured products

Linked values: from May 2026 = WPI 2022-23 [1318080000] x 1.4404 (item linking factor, ratio of FY 2024-25 geometric means).

MonthIndexChange on previous month Change over 12 monthsWPI all commoditiesSource
Sep 2026151.50 +0.1 +7.68 % 172.1 linked (2022-23 × 1.4404)
Aug 2026151.40 0.0 +6.32 % 169.5 linked (2022-23 × 1.4404)
Jul 2026151.40 +2.2 +6.69 % 168.3 linked (2022-23 × 1.4404)
Jun 2026149.20 0.0 +3.76 % 168.8 linked (2022-23 × 1.4404)
May 2026149.20 +2.0 +2.97 % 168.5 linked (2022-23 × 1.4404)
Apr 2026147.20 +2.0 +3.01 % 167.6 OEA
Mar 2026145.20 +2.1 +1.75 % 161.2 OEA
Feb 2026143.10 +2.0 +2.00 % 158.4 OEA
Jan 2026141.10 -2.9 -0.56 % 157.6 OEA
Dec 2025144.00 +1.1 +1.77 % 157.2 OEA
Nov 2025142.90 +2.5 +0.07 % 156.2 OEA
Oct 2025140.40 -0.3 -4.36 % 155.1 OEA
Sep 2025140.70 -1.7 -5.25 % 155.0 OEA
Aug 2025142.40 +0.5 -4.56 % 155.2 OEA
Jul 2025141.90 -1.9 -3.34 % 154.4 OEA
Jun 2025143.80 -1.1 -3.10 % 153.7 OEA
May 2025144.90 +2.0 -1.96 % 153.7 OEA
Apr 2025142.90 +0.2 -3.05 % 154.2 OEA
Mar 2025142.70 +2.4 -1.31 % 154.8 OEA
Feb 2025140.30 -1.6 -2.64 % 154.9 OEA
Jan 2025141.90 +0.4 -2.87 % 155.0 OEA
Dec 2024141.50 -1.3 - 155.7 OEA
Nov 2024142.80 -4.0 - 156.4 OEA
Oct 2024146.80 -1.7 - 156.7 OEA
Sep 2024148.50 -0.7 - 154.7 OEA
Aug 2024149.20 +2.4 - 154.4 OEA
Jul 2024146.80 -1.6 - 155.3 OEA
Jun 2024148.40 +0.6 - 154.0 OEA
May 2024147.80 +0.4 - 153.5 OEA
Apr 2024147.40 +2.8 - 152.9 OEA
Mar 2024144.60 +0.5 - 151.4 OEA
Feb 2024144.10 -2.0 - 151.2 OEA
Jan 2024146.10 - - 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.