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 Electricity [1203000001] Fuel and power

Linked values: from May 2026 = WPI 2022-23 [1203000000] x 1.5235 (item linking factor, ratio of FY 2024-25 geometric means).

MonthIndexChange on previous month Change over 12 monthsWPI all commoditiesSource
Sep 2026140.20 +1.7 +3.93 % 172.1 linked (2022-23 × 1.5235)
Aug 2026138.50 -1.4 +3.90 % 169.5 linked (2022-23 × 1.5235)
Jul 2026139.90 +1.0 +4.64 % 168.3 linked (2022-23 × 1.5235)
Jun 2026138.90 -0.5 +3.27 % 168.8 linked (2022-23 × 1.5235)
May 2026139.40 +0.7 +1.09 % 168.5 linked (2022-23 × 1.5235)
Apr 2026138.70 -2.0 -0.79 % 167.6 OEA
Mar 2026140.70 -8.9 -7.01 % 161.2 OEA
Feb 2026149.60 -0.6 -3.11 % 158.4 OEA
Jan 2026150.20 -4.5 -3.59 % 157.6 OEA
Dec 2025154.70 +7.0 -1.78 % 157.2 OEA
Nov 2025147.70 +7.8 -1.14 % 156.2 OEA
Oct 2025139.90 +5.0 -5.09 % 155.1 OEA
Sep 2025134.90 +1.6 -1.32 % 155.0 OEA
Aug 2025133.30 -0.4 -1.11 % 155.2 OEA
Jul 2025133.70 -0.8 +0.60 % 154.4 OEA
Jun 2025134.50 -3.4 +1.89 % 153.7 OEA
May 2025137.90 -1.9 +1.62 % 153.7 OEA
Apr 2025139.80 -11.5 -0.92 % 154.2 OEA
Mar 2025151.30 -3.1 +4.63 % 154.8 OEA
Feb 2025154.40 -1.4 -1.66 % 154.9 OEA
Jan 2025155.80 -1.7 -0.89 % 155.0 OEA
Dec 2024157.50 +8.1 - 155.7 OEA
Nov 2024149.40 +2.0 - 156.4 OEA
Oct 2024147.40 +10.7 - 156.7 OEA
Sep 2024136.70 +1.9 - 154.7 OEA
Aug 2024134.80 +1.9 - 154.4 OEA
Jul 2024132.90 +0.9 - 155.3 OEA
Jun 2024132.00 -3.7 - 154.0 OEA
May 2024135.70 -5.4 - 153.5 OEA
Apr 2024141.10 -3.5 - 152.9 OEA
Mar 2024144.60 -12.4 - 151.4 OEA
Feb 2024157.00 -0.2 - 151.2 OEA
Jan 2024157.20 - - 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.