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 Petrol [1202000002] Fuel and power

Linked values: from May 2026 = WPI 2022-23 [1202010002] x 1.6231 (item linking factor, ratio of FY 2024-25 geometric means).

MonthIndexChange on previous month Change over 12 monthsWPI all commoditiesSource
Sep 2026200.60 +2.3 +37.49 % 172.1 linked (2022-23 × 1.6231)
Aug 2026198.30 +8.9 +36.66 % 169.5 linked (2022-23 × 1.6231)
Jul 2026189.40 -13.2 +29.64 % 168.3 linked (2022-23 × 1.6231)
Jun 2026202.60 +7.5 +40.99 % 168.8 linked (2022-23 × 1.6231)
May 2026195.10 +1.4 +36.53 % 168.5 linked (2022-23 × 1.6231)
Apr 2026193.70 +38.1 +32.40 % 167.6 OEA
Mar 2026155.60 +11.3 +2.50 % 161.2 OEA
Feb 2026144.30 +0.4 -5.38 % 158.4 OEA
Jan 2026143.90 -2.5 -4.58 % 157.6 OEA
Dec 2025146.40 +0.3 -1.88 % 157.2 OEA
Nov 2025146.10 +0.1 -1.75 % 156.2 OEA
Oct 2025146.00 +0.1 -2.60 % 155.1 OEA
Sep 2025145.90 +0.8 -3.82 % 155.0 OEA
Aug 2025145.10 -1.0 -5.72 % 155.2 OEA
Jul 2025146.10 +2.4 -5.74 % 154.4 OEA
Jun 2025143.70 +0.8 -6.57 % 153.7 OEA
May 2025142.90 -3.4 -9.44 % 153.7 OEA
Apr 2025146.30 -5.5 -7.70 % 154.2 OEA
Mar 2025151.80 -0.7 -3.86 % 154.8 OEA
Feb 2025152.50 +1.7 -4.21 % 154.9 OEA
Jan 2025150.80 +1.6 -3.64 % 155.0 OEA
Dec 2024149.20 +0.5 - 155.7 OEA
Nov 2024148.70 -1.2 - 156.4 OEA
Oct 2024149.90 -1.8 - 156.7 OEA
Sep 2024151.70 -2.2 - 154.7 OEA
Aug 2024153.90 -1.1 - 154.4 OEA
Jul 2024155.00 +1.2 - 155.3 OEA
Jun 2024153.80 -4.0 - 154.0 OEA
May 2024157.80 -0.7 - 153.5 OEA
Apr 2024158.50 +0.6 - 152.9 OEA
Mar 2024157.90 -1.3 - 151.4 OEA
Feb 2024159.20 +2.7 - 151.2 OEA
Jan 2024156.50 - - 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.