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 Menthol [1310010014] Manufactured products

Linked values: from May 2026 = WPI 2022-23 [1310060001] x 0.8433 (item linking factor, ratio of FY 2024-25 geometric means).

MonthIndexChange on previous month Change over 12 monthsWPI all commoditiesSource
Sep 202685.90 -3.2 -1.15 % 172.1 linked (2022-23 × 0.8433)
Aug 202689.10 0.0 +6.20 % 169.5 linked (2022-23 × 0.8433)
Jul 202689.10 +2.1 +16.02 % 168.3 linked (2022-23 × 0.8433)
Jun 202687.00 +0.2 +12.69 % 168.8 linked (2022-23 × 0.8433)
May 202686.80 +3.7 +4.58 % 168.5 linked (2022-23 × 0.8433)
Apr 202683.10 +0.4 -2.58 % 167.6 OEA
Mar 202682.70 +0.7 +2.61 % 161.2 OEA
Feb 202682.00 -5.6 -0.12 % 158.4 OEA
Jan 202687.60 -1.2 +10.75 % 157.6 OEA
Dec 202588.80 +2.2 +11.98 % 157.2 OEA
Nov 202586.60 +0.2 +19.28 % 156.2 OEA
Oct 202586.40 -0.5 +16.29 % 155.1 OEA
Sep 202586.90 +3.0 +8.35 % 155.0 OEA
Aug 202583.90 +7.1 +2.07 % 155.2 OEA
Jul 202576.80 -0.4 -1.41 % 154.4 OEA
Jun 202577.20 -5.8 +3.90 % 153.7 OEA
May 202583.00 -2.3 +4.40 % 153.7 OEA
Apr 202585.30 +4.7 +7.03 % 154.2 OEA
Mar 202580.60 -1.5 +6.75 % 154.8 OEA
Feb 202582.10 +3.0 -1.08 % 154.9 OEA
Jan 202579.10 -0.2 +1.28 % 155.0 OEA
Dec 202479.30 +6.7 - 155.7 OEA
Nov 202472.60 -1.7 - 156.4 OEA
Oct 202474.30 -5.9 - 156.7 OEA
Sep 202480.20 -2.0 - 154.7 OEA
Aug 202482.20 +4.3 - 154.4 OEA
Jul 202477.90 +3.6 - 155.3 OEA
Jun 202474.30 -5.2 - 154.0 OEA
May 202479.50 -0.2 - 153.5 OEA
Apr 202479.70 +4.2 - 152.9 OEA
Mar 202475.50 -7.5 - 151.4 OEA
Feb 202483.00 +4.9 - 151.2 OEA
Jan 202478.10 - - 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.