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 XLPE Compound [1310030006] Manufactured products

Linked values: from May 2026 = WPI 2022-23 [1310030011] x 1.4141 (item linking factor, ratio of FY 2024-25 geometric means).

MonthIndexChange on previous month Change over 12 monthsWPI all commoditiesSource
Sep 2026156.70 +1.1 +19.98 % 172.1 linked (2022-23 × 1.4141)
Aug 2026155.60 +3.7 +19.14 % 169.5 linked (2022-23 × 1.4141)
Jul 2026151.90 -4.2 +16.31 % 168.3 linked (2022-23 × 1.4141)
Jun 2026156.10 -7.4 +19.89 % 168.8 linked (2022-23 × 1.4141)
May 2026163.50 +22.8 +25.29 % 168.5 linked (2022-23 × 1.4141)
Apr 2026140.70 +1.5 +6.19 % 167.6 OEA
Mar 2026139.20 +8.6 +5.14 % 161.2 OEA
Feb 2026130.60 +0.8 -1.28 % 158.4 OEA
Jan 2026129.80 -0.2 -1.74 % 157.6 OEA
Dec 2025130.00 +0.2 -0.99 % 157.2 OEA
Nov 2025129.80 -0.6 -1.37 % 156.2 OEA
Oct 2025130.40 -0.2 -0.76 % 155.1 OEA
Sep 2025130.60 0.0 -0.61 % 155.0 OEA
Aug 2025130.60 0.0 -0.68 % 155.2 OEA
Jul 2025130.60 +0.4 -1.43 % 154.4 OEA
Jun 2025130.20 -0.3 -1.81 % 153.7 OEA
May 2025130.50 -2.0 +0.38 % 153.7 OEA
Apr 2025132.50 +0.1 +2.00 % 154.2 OEA
Mar 2025132.40 +0.1 +2.32 % 154.8 OEA
Feb 2025132.30 +0.2 +1.93 % 154.9 OEA
Jan 2025132.10 +0.8 +3.85 % 155.0 OEA
Dec 2024131.30 -0.3 - 155.7 OEA
Nov 2024131.60 +0.2 - 156.4 OEA
Oct 2024131.40 0.0 - 156.7 OEA
Sep 2024131.40 -0.1 - 154.7 OEA
Aug 2024131.50 -1.0 - 154.4 OEA
Jul 2024132.50 -0.1 - 155.3 OEA
Jun 2024132.60 +2.6 - 154.0 OEA
May 2024130.00 +0.1 - 153.5 OEA
Apr 2024129.90 +0.5 - 152.9 OEA
Mar 2024129.40 -0.4 - 151.4 OEA
Feb 2024129.80 +2.6 - 151.2 OEA
Jan 2024127.20 - - 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.