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 rubber tyres and tubes; retreading and rebuilding of rubber tyres [1312010000] Manufactured products

Linked values: from May 2026 = WPI 2022-23 [1312010000] x 1.1325 (item linking factor, ratio of FY 2024-25 geometric means).

MonthIndexChange on previous month Change over 12 monthsWPI all commoditiesSource
Sep 2026122.60 -0.6 +6.89 % 172.1 linked (2022-23 × 1.1325)
Aug 2026123.20 +1.2 +7.69 % 169.5 linked (2022-23 × 1.1325)
Jul 2026122.00 +2.1 +6.18 % 168.3 linked (2022-23 × 1.1325)
Jun 2026119.90 +1.3 +3.63 % 168.8 linked (2022-23 × 1.1325)
May 2026118.60 +1.7 +2.24 % 168.5 linked (2022-23 × 1.1325)
Apr 2026116.90 +2.2 -0.60 % 167.6 OEA
Mar 2026114.70 +0.3 -1.97 % 161.2 OEA
Feb 2026114.40 +0.4 -2.56 % 158.4 OEA
Jan 2026114.00 0.0 -2.65 % 157.6 OEA
Dec 2025114.00 +0.1 -2.65 % 157.2 OEA
Nov 2025113.90 -0.7 -2.40 % 156.2 OEA
Oct 2025114.60 -0.1 -1.63 % 155.1 OEA
Sep 2025114.70 +0.3 -0.26 % 155.0 OEA
Aug 2025114.40 -0.5 -0.35 % 155.2 OEA
Jul 2025114.90 -0.8 +0.26 % 154.4 OEA
Jun 2025115.70 -0.3 +1.85 % 153.7 OEA
May 2025116.00 -1.6 +2.29 % 153.7 OEA
Apr 2025117.60 +0.6 +3.52 % 154.2 OEA
Mar 2025117.00 -0.4 +2.81 % 154.8 OEA
Feb 2025117.40 +0.3 +3.07 % 154.9 OEA
Jan 2025117.10 0.0 +2.99 % 155.0 OEA
Dec 2024117.10 +0.4 - 155.7 OEA
Nov 2024116.70 +0.2 - 156.4 OEA
Oct 2024116.50 +1.5 - 156.7 OEA
Sep 2024115.00 +0.2 - 154.7 OEA
Aug 2024114.80 +0.2 - 154.4 OEA
Jul 2024114.60 +1.0 - 155.3 OEA
Jun 2024113.60 +0.2 - 154.0 OEA
May 2024113.40 -0.2 - 153.5 OEA
Apr 2024113.60 -0.2 - 152.9 OEA
Mar 2024113.80 -0.1 - 151.4 OEA
Feb 2024113.90 +0.2 - 151.2 OEA
Jan 2024113.70 - - 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.