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 Rotor/magneto rotor assembly [1317010003] Manufactured products

Linked values: from May 2026 = WPI 2022-23 [1315050004] x 1.4108 (item linking factor, ratio of FY 2024-25 geometric means).

MonthIndexChange on previous month Change over 12 monthsWPI all commoditiesSource
Sep 2026139.00 +3.8 +10.58 % 172.1 linked (2022-23 × 1.4108)
Aug 2026135.20 0.0 +4.64 % 169.5 linked (2022-23 × 1.4108)
Jul 2026135.20 -1.4 +4.64 % 168.3 linked (2022-23 × 1.4108)
Jun 2026136.60 0.0 +5.81 % 168.8 linked (2022-23 × 1.4108)
May 2026136.60 +4.7 +5.89 % 168.5 linked (2022-23 × 1.4108)
Apr 2026131.90 0.0 +1.93 % 167.6 OEA
Mar 2026131.90 0.0 +4.02 % 161.2 OEA
Feb 2026131.90 +0.1 +3.94 % 158.4 OEA
Jan 2026131.80 0.0 +3.94 % 157.6 OEA
Dec 2025131.80 +5.7 +4.27 % 157.2 OEA
Nov 2025126.10 -0.2 0.00 % 156.2 OEA
Oct 2025126.30 +0.6 +0.08 % 155.1 OEA
Sep 2025125.70 -3.5 -1.49 % 155.0 OEA
Aug 2025129.20 0.0 +1.02 % 155.2 OEA
Jul 2025129.20 +0.1 +1.17 % 154.4 OEA
Jun 2025129.10 +0.1 -1.00 % 153.7 OEA
May 2025129.00 -0.4 -1.30 % 153.7 OEA
Apr 2025129.40 +2.6 +0.15 % 154.2 OEA
Mar 2025126.80 -0.1 -2.08 % 154.8 OEA
Feb 2025126.90 +0.1 -2.31 % 154.9 OEA
Jan 2025126.80 +0.4 -3.21 % 155.0 OEA
Dec 2024126.40 +0.3 - 155.7 OEA
Nov 2024126.10 -0.1 - 156.4 OEA
Oct 2024126.20 -1.4 - 156.7 OEA
Sep 2024127.60 -0.3 - 154.7 OEA
Aug 2024127.90 +0.2 - 154.4 OEA
Jul 2024127.70 -2.7 - 155.3 OEA
Jun 2024130.40 -0.3 - 154.0 OEA
May 2024130.70 +1.5 - 153.5 OEA
Apr 2024129.20 -0.3 - 152.9 OEA
Mar 2024129.50 -0.4 - 151.4 OEA
Feb 2024129.90 -1.1 - 151.2 OEA
Jan 2024131.00 - - 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.