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 Forging, pressing, stamping and roll-forming of metal; powder metallurgy [1315040000] Manufactured products

Linked values: from May 2026 = WPI 2022-23 [1315050000] x 1.4222 (item linking factor, ratio of FY 2024-25 geometric means).

MonthIndexChange on previous month Change over 12 monthsWPI all commoditiesSource
Sep 2026148.30 +2.0 +11.67 % 172.1 linked (2022-23 × 1.4222)
Aug 2026146.30 +0.4 +8.37 % 169.5 linked (2022-23 × 1.4222)
Jul 2026145.90 +1.3 +8.72 % 168.3 linked (2022-23 × 1.4222)
Jun 2026144.60 +0.4 +7.11 % 168.8 linked (2022-23 × 1.4222)
May 2026144.20 +18.4 +6.34 % 168.5 linked (2022-23 × 1.4222)
Apr 2026125.80 +2.2 -7.36 % 167.6 OEA
Mar 2026123.60 -0.6 -10.95 % 161.2 OEA
Feb 2026124.20 -6.4 -11.10 % 158.4 OEA
Jan 2026130.60 +0.8 -5.29 % 157.6 OEA
Dec 2025129.80 -2.1 -7.81 % 157.2 OEA
Nov 2025131.90 +0.1 -6.78 % 156.2 OEA
Oct 2025131.80 -1.0 -4.70 % 155.1 OEA
Sep 2025132.80 -2.2 -4.39 % 155.0 OEA
Aug 2025135.00 +0.8 -2.46 % 155.2 OEA
Jul 2025134.20 -0.8 -1.03 % 154.4 OEA
Jun 2025135.00 -0.6 -0.22 % 153.7 OEA
May 2025135.60 -0.2 +1.27 % 153.7 OEA
Apr 2025135.80 -3.0 -0.51 % 154.2 OEA
Mar 2025138.80 -0.9 +1.46 % 154.8 OEA
Feb 2025139.70 +1.8 +0.14 % 154.9 OEA
Jan 2025137.90 -2.9 -2.61 % 155.0 OEA
Dec 2024140.80 -0.7 - 155.7 OEA
Nov 2024141.50 +3.2 - 156.4 OEA
Oct 2024138.30 -0.6 - 156.7 OEA
Sep 2024138.90 +0.5 - 154.7 OEA
Aug 2024138.40 +2.8 - 154.4 OEA
Jul 2024135.60 +0.3 - 155.3 OEA
Jun 2024135.30 +1.4 - 154.0 OEA
May 2024133.90 -2.6 - 153.5 OEA
Apr 2024136.50 -0.3 - 152.9 OEA
Mar 2024136.80 -2.7 - 151.4 OEA
Feb 2024139.50 -2.1 - 151.2 OEA
Jan 2024141.60 - - 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.