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 Manufacture of machinery for mining, quarrying and construction [1318110000] Manufactured products

Linked values: from May 2026 = WPI 2022-23 [1318120000] x 0.8504 (item linking factor, ratio of FY 2024-25 geometric means).

MonthIndexChange on previous month Change over 12 monthsWPI all commoditiesSource
Sep 202693.50 +0.9 +0.65 % 172.1 linked (2022-23 × 0.8504)
Aug 202692.60 +0.1 -0.32 % 169.5 linked (2022-23 × 0.8504)
Jul 202692.50 +0.2 -0.64 % 168.3 linked (2022-23 × 0.8504)
Jun 202692.30 +0.5 -0.43 % 168.8 linked (2022-23 × 0.8504)
May 202691.80 -1.6 -0.76 % 168.5 linked (2022-23 × 0.8504)
Apr 202693.40 -0.2 +1.19 % 167.6 OEA
Mar 202693.60 +0.1 +2.18 % 161.2 OEA
Feb 202693.50 0.0 +2.30 % 158.4 OEA
Jan 202693.50 +0.4 +2.75 % 157.6 OEA
Dec 202593.10 -0.2 +3.44 % 157.2 OEA
Nov 202593.30 +0.3 +4.25 % 156.2 OEA
Oct 202593.00 +0.1 +4.26 % 155.1 OEA
Sep 202592.90 0.0 +4.62 % 155.0 OEA
Aug 202592.90 -0.2 +4.62 % 155.2 OEA
Jul 202593.10 +0.4 +4.61 % 154.4 OEA
Jun 202592.70 +0.2 +3.69 % 153.7 OEA
May 202592.50 +0.2 +3.12 % 153.7 OEA
Apr 202592.30 +0.7 +3.13 % 154.2 OEA
Mar 202591.60 +0.2 +2.58 % 154.8 OEA
Feb 202591.40 +0.4 +2.93 % 154.9 OEA
Jan 202591.00 +1.0 +2.59 % 155.0 OEA
Dec 202490.00 +0.5 - 155.7 OEA
Nov 202489.50 +0.3 - 156.4 OEA
Oct 202489.20 +0.4 - 156.7 OEA
Sep 202488.80 0.0 - 154.7 OEA
Aug 202488.80 -0.2 - 154.4 OEA
Jul 202489.00 -0.4 - 155.3 OEA
Jun 202489.40 -0.3 - 154.0 OEA
May 202489.70 +0.2 - 153.5 OEA
Apr 202489.50 +0.2 - 152.9 OEA
Mar 202489.30 +0.5 - 151.4 OEA
Feb 202488.80 +0.1 - 151.2 OEA
Jan 202488.70 - - 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.