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 GP/GC sheet [1314050003] Manufactured products

Linked values: from May 2026 = WPI 2022-23 [1314010013] x 1.6457 (item linking factor, ratio of FY 2024-25 geometric means).

MonthIndexChange on previous month Change over 12 monthsWPI all commoditiesSource
Sep 2026171.80 +27.1 +25.40 % 172.1 linked (2022-23 × 1.6457)
Aug 2026144.70 -13.9 +5.24 % 169.5 linked (2022-23 × 1.6457)
Jul 2026158.60 +15.9 +15.09 % 168.3 linked (2022-23 × 1.6457)
Jun 2026142.70 -18.6 +1.71 % 168.8 linked (2022-23 × 1.6457)
May 2026161.30 -1.5 +14.07 % 168.5 linked (2022-23 × 1.6457)
Apr 2026162.80 +11.2 +16.45 % 167.6 OEA
Mar 2026151.60 +3.4 +13.30 % 161.2 OEA
Feb 2026148.20 +6.9 +11.18 % 158.4 OEA
Jan 2026141.30 +7.7 +5.92 % 157.6 OEA
Dec 2025133.60 -1.1 -0.30 % 157.2 OEA
Nov 2025134.70 -0.4 -1.46 % 156.2 OEA
Oct 2025135.10 -1.9 -1.75 % 155.1 OEA
Sep 2025137.00 -0.5 -0.36 % 155.0 OEA
Aug 2025137.50 -0.3 -3.03 % 155.2 OEA
Jul 2025137.80 -2.5 -4.17 % 154.4 OEA
Jun 2025140.30 -1.1 -4.36 % 153.7 OEA
May 2025141.40 +1.6 -1.74 % 153.7 OEA
Apr 2025139.80 +6.0 -1.13 % 154.2 OEA
Mar 2025133.80 +0.5 -7.53 % 154.8 OEA
Feb 2025133.30 -0.1 -8.64 % 154.9 OEA
Jan 2025133.40 -0.6 -9.31 % 155.0 OEA
Dec 2024134.00 -2.7 - 155.7 OEA
Nov 2024136.70 -0.8 - 156.4 OEA
Oct 2024137.50 0.0 - 156.7 OEA
Sep 2024137.50 -4.3 - 154.7 OEA
Aug 2024141.80 -2.0 - 154.4 OEA
Jul 2024143.80 -2.9 - 155.3 OEA
Jun 2024146.70 +2.8 - 154.0 OEA
May 2024143.90 +2.5 - 153.5 OEA
Apr 2024141.40 -3.3 - 152.9 OEA
Mar 2024144.70 -1.2 - 151.4 OEA
Feb 2024145.90 -1.2 - 151.2 OEA
Jan 2024147.10 - - 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.