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 Ethyl acetate [1310010009] Manufactured products

Linked values: from May 2026 = WPI 2022-23 [1310010005] x 1.4354 (item linking factor, ratio of FY 2024-25 geometric means).

MonthIndexChange on previous month Change over 12 monthsWPI all commoditiesSource
Sep 2026149.70 +8.5 +28.06 % 172.1 linked (2022-23 × 1.4354)
Aug 2026141.20 +6.3 +20.68 % 169.5 linked (2022-23 × 1.4354)
Jul 2026134.90 +3.8 +15.69 % 168.3 linked (2022-23 × 1.4354)
Jun 2026131.10 -4.0 +12.24 % 168.8 linked (2022-23 × 1.4354)
May 2026135.10 +5.2 +15.77 % 168.5 linked (2022-23 × 1.4354)
Apr 2026129.90 +7.2 +11.03 % 167.6 OEA
Mar 2026122.70 +4.1 +5.78 % 161.2 OEA
Feb 2026118.60 -0.6 +2.15 % 158.4 OEA
Jan 2026119.20 +0.7 +0.85 % 157.6 OEA
Dec 2025118.50 +1.4 +0.17 % 157.2 OEA
Nov 2025117.10 -0.1 -1.43 % 156.2 OEA
Oct 2025117.20 +0.3 -1.26 % 155.1 OEA
Sep 2025116.90 -0.1 -1.10 % 155.0 OEA
Aug 2025117.00 +0.4 -1.43 % 155.2 OEA
Jul 2025116.60 -0.2 -2.51 % 154.4 OEA
Jun 2025116.80 +0.1 -4.11 % 153.7 OEA
May 2025116.70 -0.3 -5.04 % 153.7 OEA
Apr 2025117.00 +1.0 -6.25 % 154.2 OEA
Mar 2025116.00 -0.1 -8.23 % 154.8 OEA
Feb 2025116.10 -2.1 -9.93 % 154.9 OEA
Jan 2025118.20 -0.1 -9.22 % 155.0 OEA
Dec 2024118.30 -0.5 - 155.7 OEA
Nov 2024118.80 +0.1 - 156.4 OEA
Oct 2024118.70 +0.5 - 156.7 OEA
Sep 2024118.20 -0.5 - 154.7 OEA
Aug 2024118.70 -0.9 - 154.4 OEA
Jul 2024119.60 -2.2 - 155.3 OEA
Jun 2024121.80 -1.1 - 154.0 OEA
May 2024122.90 -1.9 - 153.5 OEA
Apr 2024124.80 -1.6 - 152.9 OEA
Mar 2024126.40 -2.5 - 151.4 OEA
Feb 2024128.90 -1.3 - 151.2 OEA
Jan 2024130.20 - - 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.