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 Other ferro alloys [1314010006] Manufactured products

Linked values: from May 2026 = WPI 2022-23 [1314010033] x 1.3877 (item linking factor, ratio of FY 2024-25 geometric means).

MonthIndexChange on previous month Change over 12 monthsWPI all commoditiesSource
Sep 2026126.60 -3.1 +3.01 % 172.1 linked (2022-23 × 1.3877)
Aug 2026129.70 +1.3 +5.53 % 169.5 linked (2022-23 × 1.3877)
Jul 2026128.40 +1.1 +4.73 % 168.3 linked (2022-23 × 1.3877)
Jun 2026127.30 -0.5 +2.74 % 168.8 linked (2022-23 × 1.3877)
May 2026127.80 -5.0 +2.82 % 168.5 linked (2022-23 × 1.3877)
Apr 2026132.80 +6.8 +8.06 % 167.6 OEA
Mar 2026126.00 +0.9 +2.02 % 161.2 OEA
Feb 2026125.10 +0.2 +0.81 % 158.4 OEA
Jan 2026124.90 -1.2 +5.05 % 157.6 OEA
Dec 2025126.10 +2.2 +11.20 % 157.2 OEA
Nov 2025123.90 +0.1 +6.72 % 156.2 OEA
Oct 2025123.80 +0.9 +4.47 % 155.1 OEA
Sep 2025122.90 0.0 +3.19 % 155.0 OEA
Aug 2025122.90 +0.3 +1.99 % 155.2 OEA
Jul 2025122.60 -1.3 -3.46 % 154.4 OEA
Jun 2025123.90 -0.4 -10.73 % 153.7 OEA
May 2025124.30 +1.4 -5.69 % 153.7 OEA
Apr 2025122.90 -0.6 +3.71 % 154.2 OEA
Mar 2025123.50 -0.6 +7.11 % 154.8 OEA
Feb 2025124.10 +5.2 +8.86 % 154.9 OEA
Jan 2025118.90 +5.5 +6.16 % 155.0 OEA
Dec 2024113.40 -2.7 - 155.7 OEA
Nov 2024116.10 -2.4 - 156.4 OEA
Oct 2024118.50 -0.6 - 156.7 OEA
Sep 2024119.10 -1.4 - 154.7 OEA
Aug 2024120.50 -6.5 - 154.4 OEA
Jul 2024127.00 -11.8 - 155.3 OEA
Jun 2024138.80 +7.0 - 154.0 OEA
May 2024131.80 +13.3 - 153.5 OEA
Apr 2024118.50 +3.2 - 152.9 OEA
Mar 2024115.30 +1.3 - 151.4 OEA
Feb 2024114.00 +2.0 - 151.2 OEA
Jan 2024112.00 - - 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.