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 Preparation and spinning of textile fibres [1304010000] Manufactured products

Linked values: from May 2026 = WPI 2022-23 [1304010000] x 1.3666 (item linking factor, ratio of FY 2024-25 geometric means).

MonthIndexChange on previous month Change over 12 monthsWPI all commoditiesSource
Sep 2026143.20 +1.3 +18.94 % 172.1 linked (2022-23 × 1.3666)
Aug 2026141.90 +0.5 +17.56 % 169.5 linked (2022-23 × 1.3666)
Jul 2026141.40 +1.2 +17.64 % 168.3 linked (2022-23 × 1.3666)
Jun 2026140.20 +2.4 +16.64 % 168.8 linked (2022-23 × 1.3666)
May 2026137.80 +11.1 +14.55 % 168.5 linked (2022-23 × 1.3666)
Apr 2026126.70 +3.5 +4.80 % 167.6 OEA
Mar 2026123.20 +1.2 +1.82 % 161.2 OEA
Feb 2026122.00 +1.7 +1.16 % 158.4 OEA
Jan 2026120.30 +0.7 -0.41 % 157.6 OEA
Dec 2025119.60 -0.2 -0.91 % 157.2 OEA
Nov 2025119.80 -0.4 -0.83 % 156.2 OEA
Oct 2025120.20 -0.2 -0.83 % 155.1 OEA
Sep 2025120.40 -0.3 -0.99 % 155.0 OEA
Aug 2025120.70 +0.5 -1.31 % 155.2 OEA
Jul 2025120.20 0.0 -1.80 % 154.4 OEA
Jun 2025120.20 -0.1 -1.56 % 153.7 OEA
May 2025120.30 -0.6 -1.39 % 153.7 OEA
Apr 2025120.90 -0.1 -0.74 % 154.2 OEA
Mar 2025121.00 +0.4 +1.00 % 154.8 OEA
Feb 2025120.60 -0.2 +0.67 % 154.9 OEA
Jan 2025120.80 +0.1 +1.77 % 155.0 OEA
Dec 2024120.70 -0.1 - 155.7 OEA
Nov 2024120.80 -0.4 - 156.4 OEA
Oct 2024121.20 -0.4 - 156.7 OEA
Sep 2024121.60 -0.7 - 154.7 OEA
Aug 2024122.30 -0.1 - 154.4 OEA
Jul 2024122.40 +0.3 - 155.3 OEA
Jun 2024122.10 +0.1 - 154.0 OEA
May 2024122.00 +0.2 - 153.5 OEA
Apr 2024121.80 +2.0 - 152.9 OEA
Mar 2024119.80 0.0 - 151.4 OEA
Feb 2024119.80 +1.1 - 151.2 OEA
Jan 2024118.70 - - 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.