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 Rubber cloth/sheet [1312010008] Manufactured products

Linked values: from May 2026 = WPI 2022-23 [1312010013] x 1.7543 (item linking factor, ratio of FY 2024-25 geometric means).

MonthIndexChange on previous month Change over 12 monthsWPI all commoditiesSource
Sep 2026185.40 +0.8 +3.52 % 172.1 linked (2022-23 × 1.7543)
Aug 2026184.60 +1.1 +1.37 % 169.5 linked (2022-23 × 1.7543)
Jul 2026183.50 -1.1 +0.77 % 168.3 linked (2022-23 × 1.7543)
Jun 2026184.60 +0.9 +0.82 % 168.8 linked (2022-23 × 1.7543)
May 2026183.70 +4.4 -2.03 % 168.5 linked (2022-23 × 1.7543)
Apr 2026179.30 +5.5 -3.39 % 167.6 OEA
Mar 2026173.80 -1.0 -4.87 % 161.2 OEA
Feb 2026174.80 +0.5 -3.27 % 158.4 OEA
Jan 2026174.30 -3.4 -2.84 % 157.6 OEA
Dec 2025177.70 -0.6 -1.77 % 157.2 OEA
Nov 2025178.30 -0.8 -0.56 % 156.2 OEA
Oct 2025179.10 0.0 -0.72 % 155.1 OEA
Sep 2025179.10 -3.0 -0.22 % 155.0 OEA
Aug 2025182.10 0.0 +1.56 % 155.2 OEA
Jul 2025182.10 -1.0 +5.93 % 154.4 OEA
Jun 2025183.10 -4.4 +8.15 % 153.7 OEA
May 2025187.50 +1.9 +10.88 % 153.7 OEA
Apr 2025185.60 +2.9 +9.89 % 154.2 OEA
Mar 2025182.70 +2.0 +11.81 % 154.8 OEA
Feb 2025180.70 +1.3 +9.71 % 154.9 OEA
Jan 2025179.40 -1.5 +11.50 % 155.0 OEA
Dec 2024180.90 +1.6 - 155.7 OEA
Nov 2024179.30 -1.1 - 156.4 OEA
Oct 2024180.40 +0.9 - 156.7 OEA
Sep 2024179.50 +0.2 - 154.7 OEA
Aug 2024179.30 +7.4 - 154.4 OEA
Jul 2024171.90 +2.6 - 155.3 OEA
Jun 2024169.30 +0.2 - 154.0 OEA
May 2024169.10 +0.2 - 153.5 OEA
Apr 2024168.90 +5.5 - 152.9 OEA
Mar 2024163.40 -1.3 - 151.4 OEA
Feb 2024164.70 +3.8 - 151.2 OEA
Jan 2024160.90 - - 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.