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 Maize [1101010105] Primary articles

Linked values: from May 2026 = WPI 2022-23 [1101010103] x 1.8743 (item linking factor, ratio of FY 2024-25 geometric means).

MonthIndexChange on previous month Change over 12 monthsWPI all commoditiesSource
Sep 2026214.80 +3.4 +5.86 % 172.1 linked (2022-23 × 1.8743)
Aug 2026211.40 +5.2 +0.28 % 169.5 linked (2022-23 × 1.8743)
Jul 2026206.20 +9.2 -0.53 % 168.3 linked (2022-23 × 1.8743)
Jun 2026197.00 +6.6 -5.29 % 168.8 linked (2022-23 × 1.8743)
May 2026190.40 +8.3 -7.84 % 168.5 linked (2022-23 × 1.8743)
Apr 2026182.10 -1.0 -13.24 % 167.6 OEA
Mar 2026183.10 -3.6 -14.60 % 161.2 OEA
Feb 2026186.70 -0.7 -14.16 % 158.4 OEA
Jan 2026187.40 -3.8 -14.00 % 157.6 OEA
Dec 2025191.20 -2.7 -10.19 % 157.2 OEA
Nov 2025193.90 -4.1 -9.10 % 156.2 OEA
Oct 2025198.00 -4.9 -8.16 % 155.1 OEA
Sep 2025202.90 -7.9 -6.28 % 155.0 OEA
Aug 2025210.80 +3.5 -1.22 % 155.2 OEA
Jul 2025207.30 -0.7 +0.05 % 154.4 OEA
Jun 2025208.00 +1.4 +2.61 % 153.7 OEA
May 2025206.60 -3.3 +2.84 % 153.7 OEA
Apr 2025209.90 -4.5 +5.64 % 154.2 OEA
Mar 2025214.40 -3.1 +9.16 % 154.8 OEA
Feb 2025217.50 -0.4 +9.63 % 154.9 OEA
Jan 2025217.90 +5.0 +11.40 % 155.0 OEA
Dec 2024212.90 -0.4 - 155.7 OEA
Nov 2024213.30 -2.3 - 156.4 OEA
Oct 2024215.60 -0.9 - 156.7 OEA
Sep 2024216.50 +3.1 - 154.7 OEA
Aug 2024213.40 +6.2 - 154.4 OEA
Jul 2024207.20 +4.5 - 155.3 OEA
Jun 2024202.70 +1.8 - 154.0 OEA
May 2024200.90 +2.2 - 153.5 OEA
Apr 2024198.70 +2.3 - 152.9 OEA
Mar 2024196.40 -2.0 - 151.4 OEA
Feb 2024198.40 +2.8 - 151.2 OEA
Jan 2024195.60 - - 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.