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 Electric Wires & Cables [1317040003] Manufactured products

Linked values: from May 2026 = WPI 2022-23 [1317040001] x 1.3974 (item linking factor, ratio of FY 2024-25 geometric means).

MonthIndexChange on previous month Change over 12 monthsWPI all commoditiesSource
Sep 2026207.80 +5.5 +30.69 % 172.1 linked (2022-23 × 1.3974)
Aug 2026202.30 +0.7 +26.28 % 169.5 linked (2022-23 × 1.3974)
Jul 2026201.60 +0.1 +27.19 % 168.3 linked (2022-23 × 1.3974)
Jun 2026201.50 +2.2 +25.00 % 168.8 linked (2022-23 × 1.3974)
May 2026199.30 +18.0 +24.64 % 168.5 linked (2022-23 × 1.3974)
Apr 2026181.30 +19.4 +14.82 % 167.6 OEA
Mar 2026161.90 -3.3 +3.58 % 161.2 OEA
Feb 2026165.20 -0.9 +8.12 % 158.4 OEA
Jan 2026166.10 0.0 +9.64 % 157.6 OEA
Dec 2025166.10 +1.0 +9.64 % 157.2 OEA
Nov 2025165.10 +6.1 +8.98 % 156.2 OEA
Oct 2025159.00 0.0 +4.81 % 155.1 OEA
Sep 2025159.00 -1.2 +5.65 % 155.0 OEA
Aug 2025160.20 +1.7 +6.37 % 155.2 OEA
Jul 2025158.50 -2.7 +4.97 % 154.4 OEA
Jun 2025161.20 +1.3 +6.05 % 153.7 OEA
May 2025159.90 +2.0 +3.36 % 153.7 OEA
Apr 2025157.90 +1.6 +3.41 % 154.2 OEA
Mar 2025156.30 +3.5 +6.62 % 154.8 OEA
Feb 2025152.80 +1.3 +4.23 % 154.9 OEA
Jan 2025151.50 0.0 +3.34 % 155.0 OEA
Dec 2024151.50 0.0 - 155.7 OEA
Nov 2024151.50 -0.2 - 156.4 OEA
Oct 2024151.70 +1.2 - 156.7 OEA
Sep 2024150.50 -0.1 - 154.7 OEA
Aug 2024150.60 -0.4 - 154.4 OEA
Jul 2024151.00 -1.0 - 155.3 OEA
Jun 2024152.00 -2.7 - 154.0 OEA
May 2024154.70 +2.0 - 153.5 OEA
Apr 2024152.70 +6.1 - 152.9 OEA
Mar 2024146.60 0.0 - 151.4 OEA
Feb 2024146.60 0.0 - 151.2 OEA
Jan 2024146.60 - - 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.