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 2022-23=100) - eaindustry.nic.in. Provisional figures are released on the 14th of the following month and made final two months later. Values entered by hand are highlighted and kept when you update.

WPI Engine Components – Pistons, Valves (Inlet & Exhaust) and Fuel Nozzles [1318010004, 2022-23] Manufactured products

MonthIndexChange on previous month Change over 12 monthsWPI all commoditiesSource
Sep 2026103.40 +0.2 +3.19 % 112.5 OEA
Aug 2026103.20 +0.7 +2.69 % 110.8 OEA
Jul 2026102.50 -0.2 +1.99 % 110.0 OEA
Jun 2026102.70 +0.8 +2.39 % 110.3 OEA
May 2026101.90 +0.7 +2.00 % 110.1 OEA
Apr 2026101.20 +0.3 +1.71 % 108.9 OEA
Mar 2026100.90 +0.9 +1.20 % 104.6 OEA
Feb 2026100.00 -0.8 +0.50 % 103.1 OEA
Jan 2026100.80 -0.2 +0.10 % 102.3 OEA
Dec 2025101.00 -1.1 +0.30 % 101.9 OEA
Nov 2025102.10 +0.6 +3.65 % 101.5 OEA
Oct 2025101.50 +1.3 +2.84 % 100.9 OEA
Sep 2025100.20 -0.3 +2.56 % 101.0 OEA
Aug 2025100.50 0.0 +2.24 % 100.8 OEA
Jul 2025100.50 +0.2 +1.93 % 100.2 OEA
Jun 2025100.30 +0.4 +2.77 % 100.3 OEA
May 202599.90 +0.4 +2.36 % 100.2 OEA
Apr 202599.50 -0.2 +0.51 % 100.5 OEA
Mar 202599.70 +0.2 +3.00 % 100.6 OEA
Feb 202599.50 -1.2 +1.12 % 100.9 OEA
Jan 2025100.70 0.0 +1.51 % 101.1 OEA
Dec 2024100.70 +2.2 +1.41 % 101.6 OEA
Nov 202498.50 -0.2 +0.10 % 102.1 OEA
Oct 202498.70 +1.0 +1.75 % 102.1 OEA
Sep 202497.70 -0.6 +0.62 % 101.2 OEA
Aug 202498.30 -0.3 -0.20 % 100.8 OEA
Jul 202498.60 +1.0 -0.30 % 101.0 OEA
Jun 202497.60 0.0 -1.51 % 100.7 OEA
May 202497.60 -1.4 -2.98 % 100.4 OEA
Apr 202499.00 +2.2 -2.75 % 99.9 OEA
Mar 202496.80 -1.6 - 99.4 OEA
Feb 202498.40 -0.8 - 99.3 OEA
Jan 202499.20 -0.1 - 99.3 OEA
Dec 202399.30 +0.9 - 99.4 OEA
Nov 202398.40 +1.4 - 100.1 OEA
Oct 202397.00 -0.1 - 100.1 OEA
Sep 202397.10 -1.4 - 99.6 OEA
Aug 202398.50 -0.4 - 99.5 OEA
Jul 202398.90 -0.2 - 99.1 OEA
Jun 202399.10 -1.5 - 98.3 OEA
May 2023100.60 -1.2 - 98.6 OEA
Apr 2023101.80 - - 99.0 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.