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 Shampoo [1310060010] Manufactured products

Linked values: from May 2026 = WPI 2022-23 [1310060010] x 1.1062 (item linking factor, ratio of FY 2024-25 geometric means).

MonthIndexChange on previous month Change over 12 monthsWPI all commoditiesSource
Sep 2026113.40 +2.0 +4.90 % 172.1 linked (2022-23 × 1.1062)
Aug 2026111.40 +0.4 +4.01 % 169.5 linked (2022-23 × 1.1062)
Jul 2026111.00 -1.3 +5.11 % 168.3 linked (2022-23 × 1.1062)
Jun 2026112.30 -1.3 +6.55 % 168.8 linked (2022-23 × 1.1062)
May 2026113.60 +7.0 +7.88 % 168.5 linked (2022-23 × 1.1062)
Apr 2026106.60 +2.4 +0.57 % 167.6 OEA
Mar 2026104.20 +1.9 +0.77 % 161.2 OEA
Feb 2026102.30 +0.5 -1.16 % 158.4 OEA
Jan 2026101.80 -1.5 -4.14 % 157.6 OEA
Dec 2025103.30 +0.2 +0.49 % 157.2 OEA
Nov 2025103.10 -4.0 +0.78 % 156.2 OEA
Oct 2025107.10 -1.0 +4.08 % 155.1 OEA
Sep 2025108.10 +1.0 +3.64 % 155.0 OEA
Aug 2025107.10 +1.5 +2.78 % 155.2 OEA
Jul 2025105.60 +0.2 +1.54 % 154.4 OEA
Jun 2025105.40 +0.1 +3.94 % 153.7 OEA
May 2025105.30 -0.7 +4.57 % 153.7 OEA
Apr 2025106.00 +2.6 +4.13 % 154.2 OEA
Mar 2025103.40 -0.1 +2.27 % 154.8 OEA
Feb 2025103.50 -2.7 +2.68 % 154.9 OEA
Jan 2025106.20 +3.4 +3.61 % 155.0 OEA
Dec 2024102.80 +0.5 - 155.7 OEA
Nov 2024102.30 -0.6 - 156.4 OEA
Oct 2024102.90 -1.4 - 156.7 OEA
Sep 2024104.30 +0.1 - 154.7 OEA
Aug 2024104.20 +0.2 - 154.4 OEA
Jul 2024104.00 +2.6 - 155.3 OEA
Jun 2024101.40 +0.7 - 154.0 OEA
May 2024100.70 -1.1 - 153.5 OEA
Apr 2024101.80 +0.7 - 152.9 OEA
Mar 2024101.10 +0.3 - 151.4 OEA
Feb 2024100.80 -1.7 - 151.2 OEA
Jan 2024102.50 - - 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.