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 Aluminium powder [1314090004] Manufactured products

Linked values: from May 2026 = WPI 2022-23 [1314020014] x 1.6858 (item linking factor, ratio of FY 2024-25 geometric means).

MonthIndexChange on previous month Change over 12 monthsWPI all commoditiesSource
Sep 2026249.20 +13.0 +30.33 % 172.1 linked (2022-23 × 1.6858)
Aug 2026236.20 -3.7 +25.44 % 169.5 linked (2022-23 × 1.6858)
Jul 2026239.90 -12.1 +27.00 % 168.3 linked (2022-23 × 1.6858)
Jun 2026252.00 +7.6 +33.33 % 168.8 linked (2022-23 × 1.6858)
May 2026244.40 +8.3 +29.45 % 168.5 linked (2022-23 × 1.6858)
Apr 2026236.10 +9.5 +26.05 % 167.6 OEA
Mar 2026226.60 +6.1 +18.39 % 161.2 OEA
Feb 2026220.50 +13.5 +17.54 % 158.4 OEA
Jan 2026207.00 +3.8 +11.29 % 157.6 OEA
Dec 2025203.20 +6.7 +9.36 % 157.2 OEA
Nov 2025196.50 +3.2 +5.08 % 156.2 OEA
Oct 2025193.30 +2.1 +5.23 % 155.1 OEA
Sep 2025191.20 +2.9 +5.05 % 155.0 OEA
Aug 2025188.30 -0.6 +7.35 % 155.2 OEA
Jul 2025188.90 -0.1 +6.30 % 154.4 OEA
Jun 2025189.00 +0.2 +3.05 % 153.7 OEA
May 2025188.80 +1.5 +3.79 % 153.7 OEA
Apr 2025187.30 -4.1 +6.60 % 154.2 OEA
Mar 2025191.40 +3.8 +17.64 % 154.8 OEA
Feb 2025187.60 +1.6 +13.97 % 154.9 OEA
Jan 2025186.00 +0.2 +13.14 % 155.0 OEA
Dec 2024185.80 -1.2 - 155.7 OEA
Nov 2024187.00 +3.3 - 156.4 OEA
Oct 2024183.70 +1.7 - 156.7 OEA
Sep 2024182.00 +6.6 - 154.7 OEA
Aug 2024175.40 -2.3 - 154.4 OEA
Jul 2024177.70 -5.7 - 155.3 OEA
Jun 2024183.40 +1.5 - 154.0 OEA
May 2024181.90 +6.2 - 153.5 OEA
Apr 2024175.70 +13.0 - 152.9 OEA
Mar 2024162.70 -1.9 - 151.4 OEA
Feb 2024164.60 +0.2 - 151.2 OEA
Jan 2024164.40 - - 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.