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 Ferrosilicon [1314010004] Manufactured products

Linked values: from May 2026 = WPI 2022-23 [1314010026] x 1.4487 (item linking factor, ratio of FY 2024-25 geometric means).

MonthIndexChange on previous month Change over 12 monthsWPI all commoditiesSource
Sep 2026124.30 +0.6 +1.80 % 172.1 linked (2022-23 × 1.4487)
Aug 2026123.70 -1.3 +0.49 % 169.5 linked (2022-23 × 1.4487)
Jul 2026125.00 -2.2 +2.29 % 168.3 linked (2022-23 × 1.4487)
Jun 2026127.20 -0.4 +4.43 % 168.8 linked (2022-23 × 1.4487)
May 2026127.60 +0.3 +5.28 % 168.5 linked (2022-23 × 1.4487)
Apr 2026127.30 +2.5 +7.34 % 167.6 OEA
Mar 2026124.80 +1.0 +4.52 % 161.2 OEA
Feb 2026123.80 -0.9 +1.64 % 158.4 OEA
Jan 2026124.70 +1.2 +2.63 % 157.6 OEA
Dec 2025123.50 +2.1 +2.83 % 157.2 OEA
Nov 2025121.40 +0.2 -0.08 % 156.2 OEA
Oct 2025121.20 -0.9 +2.97 % 155.1 OEA
Sep 2025122.10 -1.0 +4.54 % 155.0 OEA
Aug 2025123.10 +0.9 +4.23 % 155.2 OEA
Jul 2025122.20 +0.4 +1.58 % 154.4 OEA
Jun 2025121.80 +0.6 +0.16 % 153.7 OEA
May 2025121.20 +2.6 -0.57 % 153.7 OEA
Apr 2025118.60 -0.8 -0.84 % 154.2 OEA
Mar 2025119.40 -2.4 -0.08 % 154.8 OEA
Feb 2025121.80 +0.3 -0.49 % 154.9 OEA
Jan 2025121.50 +1.4 -0.98 % 155.0 OEA
Dec 2024120.10 -1.4 - 155.7 OEA
Nov 2024121.50 +3.8 - 156.4 OEA
Oct 2024117.70 +0.9 - 156.7 OEA
Sep 2024116.80 -1.3 - 154.7 OEA
Aug 2024118.10 -2.2 - 154.4 OEA
Jul 2024120.30 -1.3 - 155.3 OEA
Jun 2024121.60 -0.3 - 154.0 OEA
May 2024121.90 +2.3 - 153.5 OEA
Apr 2024119.60 +0.1 - 152.9 OEA
Mar 2024119.50 -2.9 - 151.4 OEA
Feb 2024122.40 -0.3 - 151.2 OEA
Jan 2024122.70 - - 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.