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 Chromite [1103010002] Primary articles

Linked values: from May 2026 = WPI 2022-23 [1103010002] x 0.8719 (item linking factor, ratio of FY 2024-25 geometric means).

MonthIndexChange on previous month Change over 12 monthsWPI all commoditiesSource
Sep 2026139.60 -0.8 +21.39 % 172.1 linked (2022-23 × 0.8719)
Aug 2026140.40 +1.0 +29.52 % 169.5 linked (2022-23 × 0.8719)
Jul 2026139.40 -0.7 +28.72 % 168.3 linked (2022-23 × 0.8719)
Jun 2026140.10 -3.1 +31.43 % 168.8 linked (2022-23 × 0.8719)
May 2026143.20 -1.4 +37.30 % 168.5 linked (2022-23 × 0.8719)
Apr 2026144.60 -0.9 +35.77 % 167.6 OEA
Mar 2026145.50 +10.9 +37.39 % 161.2 OEA
Feb 2026134.60 +5.6 +36.10 % 158.4 OEA
Jan 2026129.00 +8.3 +34.24 % 157.6 OEA
Dec 2025120.70 -7.0 +6.53 % 157.2 OEA
Nov 2025127.70 +9.7 +8.77 % 156.2 OEA
Oct 2025118.00 +3.0 -5.83 % 155.1 OEA
Sep 2025115.00 +6.6 -0.26 % 155.0 OEA
Aug 2025108.40 +0.1 -12.79 % 155.2 OEA
Jul 2025108.30 +1.7 -19.60 % 154.4 OEA
Jun 2025106.60 +2.3 -10.50 % 153.7 OEA
May 2025104.30 -2.2 -15.95 % 153.7 OEA
Apr 2025106.50 +0.6 -16.54 % 154.2 OEA
Mar 2025105.90 +7.0 -31.98 % 154.8 OEA
Feb 202598.90 +2.8 -32.21 % 154.9 OEA
Jan 202596.10 -17.2 -32.98 % 155.0 OEA
Dec 2024113.30 -4.1 - 155.7 OEA
Nov 2024117.40 -7.9 - 156.4 OEA
Oct 2024125.30 +10.0 - 156.7 OEA
Sep 2024115.30 -9.0 - 154.7 OEA
Aug 2024124.30 -10.4 - 154.4 OEA
Jul 2024134.70 +15.6 - 155.3 OEA
Jun 2024119.10 -5.0 - 154.0 OEA
May 2024124.10 -3.5 - 153.5 OEA
Apr 2024127.60 -28.1 - 152.9 OEA
Mar 2024155.70 +9.8 - 151.4 OEA
Feb 2024145.90 +2.5 - 151.2 OEA
Jan 2024143.40 - - 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.