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 Fibre glass incl. sheet [1313010003] Manufactured products

Linked values: from May 2026 = WPI 2022-23 [1313010011] x 1.4466 (item linking factor, ratio of FY 2024-25 geometric means).

MonthIndexChange on previous month Change over 12 monthsWPI all commoditiesSource
Sep 2026148.90 +2.1 +3.62 % 172.1 linked (2022-23 × 1.4466)
Aug 2026146.80 +0.3 +3.16 % 169.5 linked (2022-23 × 1.4466)
Jul 2026146.50 +0.4 +3.17 % 168.3 linked (2022-23 × 1.4466)
Jun 2026146.10 +2.0 +2.67 % 168.8 linked (2022-23 × 1.4466)
May 2026144.10 -1.9 +2.13 % 168.5 linked (2022-23 × 1.4466)
Apr 2026146.00 +1.7 +3.99 % 167.6 OEA
Mar 2026144.30 -0.3 +3.00 % 161.2 OEA
Feb 2026144.60 +1.6 +3.88 % 158.4 OEA
Jan 2026143.00 +0.3 +2.95 % 157.6 OEA
Dec 2025142.70 -1.1 +3.26 % 157.2 OEA
Nov 2025143.80 +1.8 +6.28 % 156.2 OEA
Oct 2025142.00 -1.7 +3.65 % 155.1 OEA
Sep 2025143.70 +1.4 +4.81 % 155.0 OEA
Aug 2025142.30 +0.3 +1.57 % 155.2 OEA
Jul 2025142.00 -0.3 +1.28 % 154.4 OEA
Jun 2025142.30 +1.2 +2.74 % 153.7 OEA
May 2025141.10 +0.7 +1.15 % 153.7 OEA
Apr 2025140.40 +0.3 -1.89 % 154.2 OEA
Mar 2025140.10 +0.9 -1.89 % 154.8 OEA
Feb 2025139.20 +0.3 -1.42 % 154.9 OEA
Jan 2025138.90 +0.7 -4.86 % 155.0 OEA
Dec 2024138.20 +2.9 - 155.7 OEA
Nov 2024135.30 -1.7 - 156.4 OEA
Oct 2024137.00 -0.1 - 156.7 OEA
Sep 2024137.10 -3.0 - 154.7 OEA
Aug 2024140.10 -0.1 - 154.4 OEA
Jul 2024140.20 +1.7 - 155.3 OEA
Jun 2024138.50 -1.0 - 154.0 OEA
May 2024139.50 -3.6 - 153.5 OEA
Apr 2024143.10 +0.3 - 152.9 OEA
Mar 2024142.80 +1.6 - 151.4 OEA
Feb 2024141.20 -4.8 - 151.2 OEA
Jan 2024146.00 - - 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.