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 cocoa, chocolate and sugar confectionery [1301100000] Manufactured products

Linked values: from May 2026 = WPI 2022-23 [1301100000] x 1.4513 (item linking factor, ratio of FY 2024-25 geometric means).

MonthIndexChange on previous month Change over 12 monthsWPI all commoditiesSource
Sep 2026167.30 -1.1 -5.37 % 172.1 linked (2022-23 × 1.4513)
Aug 2026168.40 +0.9 -4.80 % 169.5 linked (2022-23 × 1.4513)
Jul 2026167.50 -1.0 -5.47 % 168.3 linked (2022-23 × 1.4513)
Jun 2026168.50 +1.3 -5.71 % 168.8 linked (2022-23 × 1.4513)
May 2026167.20 -9.7 -5.22 % 168.5 linked (2022-23 × 1.4513)
Apr 2026176.90 +0.3 +1.32 % 167.6 OEA
Mar 2026176.60 +1.1 +1.20 % 161.2 OEA
Feb 2026175.50 -1.1 +1.92 % 158.4 OEA
Jan 2026176.60 +0.6 +2.85 % 157.6 OEA
Dec 2025176.00 +1.1 +5.26 % 157.2 OEA
Nov 2025174.90 +0.5 +8.90 % 156.2 OEA
Oct 2025174.40 -2.4 +8.66 % 155.1 OEA
Sep 2025176.80 -0.1 +10.16 % 155.0 OEA
Aug 2025176.90 -0.3 +12.60 % 155.2 OEA
Jul 2025177.20 -1.5 +14.18 % 154.4 OEA
Jun 2025178.70 +2.3 +16.57 % 153.7 OEA
May 2025176.40 +1.8 +17.68 % 153.7 OEA
Apr 2025174.60 +0.1 +21.33 % 154.2 OEA
Mar 2025174.50 +2.3 +22.54 % 154.8 OEA
Feb 2025172.20 +0.5 +19.92 % 154.9 OEA
Jan 2025171.70 +4.5 +20.58 % 155.0 OEA
Dec 2024167.20 +6.6 - 155.7 OEA
Nov 2024160.60 +0.1 - 156.4 OEA
Oct 2024160.50 0.0 - 156.7 OEA
Sep 2024160.50 +3.4 - 154.7 OEA
Aug 2024157.10 +1.9 - 154.4 OEA
Jul 2024155.20 +1.9 - 155.3 OEA
Jun 2024153.30 +3.4 - 154.0 OEA
May 2024149.90 +6.0 - 153.5 OEA
Apr 2024143.90 +1.5 - 152.9 OEA
Mar 2024142.40 -1.2 - 151.4 OEA
Feb 2024143.60 +1.2 - 151.2 OEA
Jan 2024142.40 - - 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.