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 Manufacture of bearings, gears, gearing and driving elements [1318040000] Manufactured products

Linked values: from May 2026 = WPI 2022-23 [1318040000] x 1.2566 (item linking factor, ratio of FY 2024-25 geometric means).

MonthIndexChange on previous month Change over 12 monthsWPI all commoditiesSource
Sep 2026129.90 -2.0 -0.38 % 172.1 linked (2022-23 × 1.2566)
Aug 2026131.90 +0.7 +1.23 % 169.5 linked (2022-23 × 1.2566)
Jul 2026131.20 +1.4 +0.77 % 168.3 linked (2022-23 × 1.2566)
Jun 2026129.80 +0.1 -1.59 % 168.8 linked (2022-23 × 1.2566)
May 2026129.70 -3.9 +0.54 % 168.5 linked (2022-23 × 1.2566)
Apr 2026133.60 -0.2 +3.01 % 167.6 OEA
Mar 2026133.80 +0.9 +1.59 % 161.2 OEA
Feb 2026132.90 -0.6 +3.26 % 158.4 OEA
Jan 2026133.50 -0.1 +2.93 % 157.6 OEA
Dec 2025133.60 +1.2 +3.09 % 157.2 OEA
Nov 2025132.40 +0.8 +3.36 % 156.2 OEA
Oct 2025131.60 +1.2 +3.62 % 155.1 OEA
Sep 2025130.40 +0.1 +2.19 % 155.0 OEA
Aug 2025130.30 +0.1 +3.09 % 155.2 OEA
Jul 2025130.20 -1.7 +1.72 % 154.4 OEA
Jun 2025131.90 +2.9 +2.25 % 153.7 OEA
May 2025129.00 -0.7 +0.62 % 153.7 OEA
Apr 2025129.70 -2.0 +1.57 % 154.2 OEA
Mar 2025131.70 +3.0 +1.62 % 154.8 OEA
Feb 2025128.70 -1.0 -1.38 % 154.9 OEA
Jan 2025129.70 +0.1 +0.08 % 155.0 OEA
Dec 2024129.60 +1.5 - 155.7 OEA
Nov 2024128.10 +1.1 - 156.4 OEA
Oct 2024127.00 -0.6 - 156.7 OEA
Sep 2024127.60 +1.2 - 154.7 OEA
Aug 2024126.40 -1.6 - 154.4 OEA
Jul 2024128.00 -1.0 - 155.3 OEA
Jun 2024129.00 +0.8 - 154.0 OEA
May 2024128.20 +0.5 - 153.5 OEA
Apr 2024127.70 -1.9 - 152.9 OEA
Mar 2024129.60 -0.9 - 151.4 OEA
Feb 2024130.50 +0.9 - 151.2 OEA
Jan 2024129.60 - - 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.