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 Sewing Machines [1318130002] Manufactured products

Linked values: from May 2026 = WPI 2022-23 [1318140005] x 1.5251 (item linking factor, ratio of FY 2024-25 geometric means).

MonthIndexChange on previous month Change over 12 monthsWPI all commoditiesSource
Sep 2026172.90 +2.5 +1.83 % 172.1 linked (2022-23 × 1.5251)
Aug 2026170.40 +0.8 -0.53 % 169.5 linked (2022-23 × 1.5251)
Jul 2026169.60 +1.1 +0.71 % 168.3 linked (2022-23 × 1.5251)
Jun 2026168.50 -1.2 +1.26 % 168.8 linked (2022-23 × 1.5251)
May 2026169.70 -1.3 +3.04 % 168.5 linked (2022-23 × 1.5251)
Apr 2026171.00 +0.3 +4.01 % 167.6 OEA
Mar 2026170.70 +3.6 +2.83 % 161.2 OEA
Feb 2026167.10 +0.1 +0.78 % 158.4 OEA
Jan 2026167.00 -1.4 +1.27 % 157.6 OEA
Dec 2025168.40 -1.7 +2.93 % 157.2 OEA
Nov 2025170.10 +0.6 +3.85 % 156.2 OEA
Oct 2025169.50 -0.3 +3.61 % 155.1 OEA
Sep 2025169.80 -1.5 +4.04 % 155.0 OEA
Aug 2025171.30 +2.9 +5.35 % 155.2 OEA
Jul 2025168.40 +2.0 +3.63 % 154.4 OEA
Jun 2025166.40 +1.7 +4.00 % 153.7 OEA
May 2025164.70 +0.3 +3.00 % 153.7 OEA
Apr 2025164.40 -1.6 +3.01 % 154.2 OEA
Mar 2025166.00 +0.2 +4.47 % 154.8 OEA
Feb 2025165.80 +0.9 +4.41 % 154.9 OEA
Jan 2025164.90 +1.3 +3.65 % 155.0 OEA
Dec 2024163.60 -0.2 - 155.7 OEA
Nov 2024163.80 +0.2 - 156.4 OEA
Oct 2024163.60 +0.4 - 156.7 OEA
Sep 2024163.20 +0.6 - 154.7 OEA
Aug 2024162.60 +0.1 - 154.4 OEA
Jul 2024162.50 +2.5 - 155.3 OEA
Jun 2024160.00 +0.1 - 154.0 OEA
May 2024159.90 +0.3 - 153.5 OEA
Apr 2024159.60 +0.7 - 152.9 OEA
Mar 2024158.90 +0.1 - 151.4 OEA
Feb 2024158.80 -0.3 - 151.2 OEA
Jan 2024159.10 - - 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.