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 Rubber Tread [1312020009] Manufactured products

Linked values: from May 2026 = WPI 2022-23 [1312020016] x 1.0514 (item linking factor, ratio of FY 2024-25 geometric means).

MonthIndexChange on previous month Change over 12 monthsWPI all commoditiesSource
Sep 2026113.30 +0.5 +7.70 % 172.1 linked (2022-23 × 1.0514)
Aug 2026112.80 -0.4 +6.72 % 169.5 linked (2022-23 × 1.0514)
Jul 2026113.20 -0.4 +7.30 % 168.3 linked (2022-23 × 1.0514)
Jun 2026113.60 +1.4 +7.78 % 168.8 linked (2022-23 × 1.0514)
May 2026112.20 +4.4 +6.35 % 168.5 linked (2022-23 × 1.0514)
Apr 2026107.80 +2.9 +0.84 % 167.6 OEA
Mar 2026104.90 0.0 -2.15 % 161.2 OEA
Feb 2026104.90 +0.3 -1.69 % 158.4 OEA
Jan 2026104.60 0.0 -1.13 % 157.6 OEA
Dec 2025104.60 0.0 +1.55 % 157.2 OEA
Nov 2025104.60 +0.1 +1.95 % 156.2 OEA
Oct 2025104.50 -0.7 -0.48 % 155.1 OEA
Sep 2025105.20 -0.5 -1.03 % 155.0 OEA
Aug 2025105.70 +0.2 -0.66 % 155.2 OEA
Jul 2025105.50 +0.1 +0.57 % 154.4 OEA
Jun 2025105.40 -0.1 +2.33 % 153.7 OEA
May 2025105.50 -1.4 +2.53 % 153.7 OEA
Apr 2025106.90 -0.3 +4.19 % 154.2 OEA
Mar 2025107.20 +0.5 +6.03 % 154.8 OEA
Feb 2025106.70 +0.9 +5.96 % 154.9 OEA
Jan 2025105.80 +2.8 +3.73 % 155.0 OEA
Dec 2024103.00 +0.4 - 155.7 OEA
Nov 2024102.60 -2.4 - 156.4 OEA
Oct 2024105.00 -1.3 - 156.7 OEA
Sep 2024106.30 -0.1 - 154.7 OEA
Aug 2024106.40 +1.5 - 154.4 OEA
Jul 2024104.90 +1.9 - 155.3 OEA
Jun 2024103.00 +0.1 - 154.0 OEA
May 2024102.90 +0.3 - 153.5 OEA
Apr 2024102.60 +1.5 - 152.9 OEA
Mar 2024101.10 +0.4 - 151.4 OEA
Feb 2024100.70 -1.3 - 151.2 OEA
Jan 2024102.00 - - 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.