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 textile, apparel and leather production [1318130000] Manufactured products

Linked values: from May 2026 = WPI 2022-23 [1318140000] x 1.3371 (item linking factor, ratio of FY 2024-25 geometric means).

MonthIndexChange on previous month Change over 12 monthsWPI all commoditiesSource
Sep 2026144.10 +2.1 -1.91 % 172.1 linked (2022-23 × 1.3371)
Aug 2026142.00 +2.0 -3.73 % 169.5 linked (2022-23 × 1.3371)
Jul 2026140.00 -1.3 -1.06 % 168.3 linked (2022-23 × 1.3371)
Jun 2026141.30 +3.0 +1.00 % 168.8 linked (2022-23 × 1.3371)
May 2026138.30 -14.1 -0.43 % 168.5 linked (2022-23 × 1.3371)
Apr 2026152.40 +7.2 +9.48 % 167.6 OEA
Mar 2026145.20 -7.3 -2.42 % 161.2 OEA
Feb 2026152.50 +6.1 +4.81 % 158.4 OEA
Jan 2026146.40 +0.2 +0.90 % 157.6 OEA
Dec 2025146.20 +2.4 +3.47 % 157.2 OEA
Nov 2025143.80 -3.0 +4.05 % 156.2 OEA
Oct 2025146.80 -0.1 +4.11 % 155.1 OEA
Sep 2025146.90 -0.6 +2.87 % 155.0 OEA
Aug 2025147.50 +6.0 +3.95 % 155.2 OEA
Jul 2025141.50 +1.6 +1.58 % 154.4 OEA
Jun 2025139.90 +1.0 +2.64 % 153.7 OEA
May 2025138.90 -0.3 -0.22 % 153.7 OEA
Apr 2025139.20 -9.6 +0.94 % 154.2 OEA
Mar 2025148.80 +3.3 +8.06 % 154.8 OEA
Feb 2025145.50 +0.4 +5.59 % 154.9 OEA
Jan 2025145.10 +3.8 +6.93 % 155.0 OEA
Dec 2024141.30 +3.1 - 155.7 OEA
Nov 2024138.20 -2.8 - 156.4 OEA
Oct 2024141.00 -1.8 - 156.7 OEA
Sep 2024142.80 +0.9 - 154.7 OEA
Aug 2024141.90 +2.6 - 154.4 OEA
Jul 2024139.30 +3.0 - 155.3 OEA
Jun 2024136.30 -2.9 - 154.0 OEA
May 2024139.20 +1.3 - 153.5 OEA
Apr 2024137.90 +0.2 - 152.9 OEA
Mar 2024137.70 -0.1 - 151.4 OEA
Feb 2024137.80 +2.1 - 151.2 OEA
Jan 2024135.70 - - 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.