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 Ignition device [1319020019] Manufactured products

Linked values: from May 2026 = WPI 2022-23 [1317010008] x 1.6267 (item linking factor, ratio of FY 2024-25 geometric means).

MonthIndexChange on previous month Change over 12 monthsWPI all commoditiesSource
Sep 2026184.50 -0.1 -0.70 % 172.1 linked (2022-23 × 1.6267)
Aug 2026184.60 +0.1 -0.65 % 169.5 linked (2022-23 × 1.6267)
Jul 2026184.50 +1.0 -0.70 % 168.3 linked (2022-23 × 1.6267)
Jun 2026183.50 0.0 -1.13 % 168.8 linked (2022-23 × 1.6267)
May 2026183.50 -2.7 -1.08 % 168.5 linked (2022-23 × 1.6267)
Apr 2026186.20 0.0 +0.38 % 167.6 OEA
Mar 2026186.20 +0.2 +2.82 % 161.2 OEA
Feb 2026186.00 0.0 +2.71 % 158.4 OEA
Jan 2026186.00 0.0 +2.48 % 157.6 OEA
Dec 2025186.00 0.0 +2.48 % 157.2 OEA
Nov 2025186.00 0.0 +2.48 % 156.2 OEA
Oct 2025186.00 +0.2 +2.71 % 155.1 OEA
Sep 2025185.80 0.0 +2.94 % 155.0 OEA
Aug 2025185.80 0.0 +2.94 % 155.2 OEA
Jul 2025185.80 +0.2 +3.45 % 154.4 OEA
Jun 2025185.60 +0.1 +3.34 % 153.7 OEA
May 2025185.50 0.0 +3.29 % 153.7 OEA
Apr 2025185.50 +4.4 +3.29 % 154.2 OEA
Mar 2025181.10 0.0 +0.84 % 154.8 OEA
Feb 2025181.10 -0.4 +0.78 % 154.9 OEA
Jan 2025181.50 0.0 +1.00 % 155.0 OEA
Dec 2024181.50 0.0 - 155.7 OEA
Nov 2024181.50 +0.4 - 156.4 OEA
Oct 2024181.10 +0.6 - 156.7 OEA
Sep 2024180.50 0.0 - 154.7 OEA
Aug 2024180.50 +0.9 - 154.4 OEA
Jul 2024179.60 0.0 - 155.3 OEA
Jun 2024179.60 0.0 - 154.0 OEA
May 2024179.60 0.0 - 153.5 OEA
Apr 2024179.60 0.0 - 152.9 OEA
Mar 2024179.60 -0.1 - 151.4 OEA
Feb 2024179.70 0.0 - 151.2 OEA
Jan 2024179.70 - - 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.