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 grain mill products [1301060000] Manufactured products

Linked values: from May 2026 = WPI 2022-23 [1301060000] x 1.6439 (item linking factor, ratio of FY 2024-25 geometric means).

MonthIndexChange on previous month Change over 12 monthsWPI all commoditiesSource
Sep 2026192.30 +3.3 +3.11 % 172.1 linked (2022-23 × 1.6439)
Aug 2026189.00 +3.2 +1.07 % 169.5 linked (2022-23 × 1.6439)
Jul 2026185.80 +2.5 +0.05 % 168.3 linked (2022-23 × 1.6439)
Jun 2026183.30 +1.8 -1.03 % 168.8 linked (2022-23 × 1.6439)
May 2026181.50 -3.8 -2.47 % 168.5 linked (2022-23 × 1.6439)
Apr 2026185.30 -0.8 -0.91 % 167.6 OEA
Mar 2026186.10 +1.0 -1.33 % 161.2 OEA
Feb 2026185.10 -0.3 -2.58 % 158.4 OEA
Jan 2026185.40 +2.1 -2.63 % 157.6 OEA
Dec 2025183.30 -1.5 -3.27 % 157.2 OEA
Nov 2025184.80 -1.0 -2.94 % 156.2 OEA
Oct 2025185.80 -0.7 -1.17 % 155.1 OEA
Sep 2025186.50 -0.5 -0.05 % 155.0 OEA
Aug 2025187.00 +1.3 +1.63 % 155.2 OEA
Jul 2025185.70 +0.5 +0.43 % 154.4 OEA
Jun 2025185.20 -0.9 +0.05 % 153.7 OEA
May 2025186.10 -0.9 +1.81 % 153.7 OEA
Apr 2025187.00 -1.6 +2.52 % 154.2 OEA
Mar 2025188.60 -1.4 +3.23 % 154.8 OEA
Feb 2025190.00 -0.4 +4.51 % 154.9 OEA
Jan 2025190.40 +0.9 +5.08 % 155.0 OEA
Dec 2024189.50 -0.9 - 155.7 OEA
Nov 2024190.40 +2.4 - 156.4 OEA
Oct 2024188.00 +1.4 - 156.7 OEA
Sep 2024186.60 +2.6 - 154.7 OEA
Aug 2024184.00 -0.9 - 154.4 OEA
Jul 2024184.90 -0.2 - 155.3 OEA
Jun 2024185.10 +2.3 - 154.0 OEA
May 2024182.80 +0.4 - 153.5 OEA
Apr 2024182.40 -0.3 - 152.9 OEA
Mar 2024182.70 +0.9 - 151.4 OEA
Feb 2024181.80 +0.6 - 151.2 OEA
Jan 2024181.20 - - 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.