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 Cotton seed Oil [1301040011] Manufactured products

Linked values: from May 2026 = WPI 2022-23 [1301040001] x 1.7076 (item linking factor, ratio of FY 2024-25 geometric means).

MonthIndexChange on previous month Change over 12 monthsWPI all commoditiesSource
Sep 2026195.00 +3.6 +19.34 % 172.1 linked (2022-23 × 1.7076)
Aug 2026191.40 -0.7 +15.37 % 169.5 linked (2022-23 × 1.7076)
Jul 2026192.10 +5.1 +17.71 % 168.3 linked (2022-23 × 1.7076)
Jun 2026187.00 +3.1 +16.29 % 168.8 linked (2022-23 × 1.7076)
May 2026183.90 +6.0 +14.29 % 168.5 linked (2022-23 × 1.7076)
Apr 2026177.90 +3.5 +9.41 % 167.6 OEA
Mar 2026174.40 +7.1 +6.15 % 161.2 OEA
Feb 2026167.30 +3.4 +4.37 % 158.4 OEA
Jan 2026163.90 +2.3 +5.47 % 157.6 OEA
Dec 2025161.60 -1.2 +7.23 % 157.2 OEA
Nov 2025162.80 +0.2 +8.17 % 156.2 OEA
Oct 2025162.60 -0.8 +12.53 % 155.1 OEA
Sep 2025163.40 -2.5 +19.71 % 155.0 OEA
Aug 2025165.90 +2.7 +30.73 % 155.2 OEA
Jul 2025163.20 +2.4 +28.91 % 154.4 OEA
Jun 2025160.80 -0.1 +25.63 % 153.7 OEA
May 2025160.90 -1.7 +26.30 % 153.7 OEA
Apr 2025162.60 -1.7 +28.33 % 154.2 OEA
Mar 2025164.30 +4.0 +31.76 % 154.8 OEA
Feb 2025160.30 +4.9 +34.82 % 154.9 OEA
Jan 2025155.40 +4.7 +32.37 % 155.0 OEA
Dec 2024150.70 +0.2 - 155.7 OEA
Nov 2024150.50 +6.0 - 156.4 OEA
Oct 2024144.50 +8.0 - 156.7 OEA
Sep 2024136.50 +9.6 - 154.7 OEA
Aug 2024126.90 +0.3 - 154.4 OEA
Jul 2024126.60 -1.4 - 155.3 OEA
Jun 2024128.00 +0.6 - 154.0 OEA
May 2024127.40 +0.7 - 153.5 OEA
Apr 2024126.70 +2.0 - 152.9 OEA
Mar 2024124.70 +5.8 - 151.4 OEA
Feb 2024118.90 +1.5 - 151.2 OEA
Jan 2024117.40 - - 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.