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 Ferrochrome [1314010002] Manufactured products

Linked values: from May 2026 = WPI 2022-23 [1314010025] x 1.8010 (item linking factor, ratio of FY 2024-25 geometric means).

MonthIndexChange on previous month Change over 12 monthsWPI all commoditiesSource
Sep 2026187.80 -8.1 +5.68 % 172.1 linked (2022-23 × 1.8010)
Aug 2026195.90 -0.8 +12.65 % 169.5 linked (2022-23 × 1.8010)
Jul 2026196.70 -13.1 +14.96 % 168.3 linked (2022-23 × 1.8010)
Jun 2026209.80 -0.6 +22.26 % 168.8 linked (2022-23 × 1.8010)
May 2026210.40 +22.5 +23.04 % 168.5 linked (2022-23 × 1.8010)
Apr 2026187.90 +2.1 +8.61 % 167.6 OEA
Mar 2026185.80 +2.4 +7.46 % 161.2 OEA
Feb 2026183.40 +5.4 +8.84 % 158.4 OEA
Jan 2026178.00 -3.0 +4.77 % 157.6 OEA
Dec 2025181.00 -1.5 +4.02 % 157.2 OEA
Nov 2025182.50 +0.9 +4.41 % 156.2 OEA
Oct 2025181.60 +3.9 +2.89 % 155.1 OEA
Sep 2025177.70 +3.8 +1.02 % 155.0 OEA
Aug 2025173.90 +2.8 +0.46 % 155.2 OEA
Jul 2025171.10 -0.5 -3.28 % 154.4 OEA
Jun 2025171.60 +0.6 -3.32 % 153.7 OEA
May 2025171.00 -2.0 -2.06 % 153.7 OEA
Apr 2025173.00 +0.1 -1.14 % 154.2 OEA
Mar 2025172.90 +4.4 -3.03 % 154.8 OEA
Feb 2025168.50 -1.4 -6.18 % 154.9 OEA
Jan 2025169.90 -4.1 -3.74 % 155.0 OEA
Dec 2024174.00 -0.8 - 155.7 OEA
Nov 2024174.80 -1.7 - 156.4 OEA
Oct 2024176.50 +0.6 - 156.7 OEA
Sep 2024175.90 +2.8 - 154.7 OEA
Aug 2024173.10 -3.8 - 154.4 OEA
Jul 2024176.90 -0.6 - 155.3 OEA
Jun 2024177.50 +2.9 - 154.0 OEA
May 2024174.60 -0.4 - 153.5 OEA
Apr 2024175.00 -3.3 - 152.9 OEA
Mar 2024178.30 -1.3 - 151.4 OEA
Feb 2024179.60 +3.1 - 151.2 OEA
Jan 2024176.50 - - 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.