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 Mild Steel -Long Products [1314040000] Manufactured products

Linked values: from May 2026 = WPI 2022-23 [1314010014] x 1.6143 (item linking factor, ratio of FY 2024-25 geometric means).

MonthIndexChange on previous month Change over 12 monthsWPI all commoditiesSource
Sep 2026146.40 +12.9 +7.96 % 172.1 linked (2022-23 × 1.6143)
Aug 2026133.50 -4.2 -1.26 % 169.5 linked (2022-23 × 1.6143)
Jul 2026137.70 +1.0 +1.77 % 168.3 linked (2022-23 × 1.6143)
Jun 2026136.70 -8.1 -0.36 % 168.8 linked (2022-23 × 1.6143)
May 2026144.80 -0.6 +4.40 % 168.5 linked (2022-23 × 1.6143)
Apr 2026145.40 +2.7 +3.27 % 167.6 OEA
Mar 2026142.70 +1.9 +1.93 % 161.2 OEA
Feb 2026140.80 +3.2 +1.51 % 158.4 OEA
Jan 2026137.60 +4.4 -0.65 % 157.6 OEA
Dec 2025133.20 -0.1 -4.52 % 157.2 OEA
Nov 2025133.30 -0.5 -4.92 % 156.2 OEA
Oct 2025133.80 -1.8 -4.43 % 155.1 OEA
Sep 2025135.60 +0.4 -2.38 % 155.0 OEA
Aug 2025135.20 -0.1 -2.45 % 155.2 OEA
Jul 2025135.30 -1.9 -3.15 % 154.4 OEA
Jun 2025137.20 -1.5 -4.46 % 153.7 OEA
May 2025138.70 -2.1 -4.01 % 153.7 OEA
Apr 2025140.80 +0.8 -1.05 % 154.2 OEA
Mar 2025140.00 +1.3 +0.79 % 154.8 OEA
Feb 2025138.70 +0.2 +0.29 % 154.9 OEA
Jan 2025138.50 -1.0 +0.14 % 155.0 OEA
Dec 2024139.50 -0.7 - 155.7 OEA
Nov 2024140.20 +0.2 - 156.4 OEA
Oct 2024140.00 +1.1 - 156.7 OEA
Sep 2024138.90 +0.3 - 154.7 OEA
Aug 2024138.60 -1.1 - 154.4 OEA
Jul 2024139.70 -3.9 - 155.3 OEA
Jun 2024143.60 -0.9 - 154.0 OEA
May 2024144.50 +2.2 - 153.5 OEA
Apr 2024142.30 +3.4 - 152.9 OEA
Mar 2024138.90 +0.6 - 151.4 OEA
Feb 2024138.30 0.0 - 151.2 OEA
Jan 2024138.30 - - 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.