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 Mild steel (MS) flats & sheets [1315010002] Manufactured products

Linked values: from May 2026 = WPI 2022-23 [1314010029] x 1.0994 (item linking factor, ratio of FY 2024-25 geometric means).

MonthIndexChange on previous month Change over 12 monthsWPI all commoditiesSource
Sep 2026110.70 +0.4 +6.24 % 172.1 linked (2022-23 × 1.0994)
Aug 2026110.30 -4.4 +5.85 % 169.5 linked (2022-23 × 1.0994)
Jul 2026114.70 -2.5 +14.13 % 168.3 linked (2022-23 × 1.0994)
Jun 2026117.20 +1.7 +16.62 % 168.8 linked (2022-23 × 1.0994)
May 2026115.50 +7.7 +10.84 % 168.5 linked (2022-23 × 1.0994)
Apr 2026107.80 +1.8 +3.45 % 167.6 OEA
Mar 2026106.00 +1.8 +5.47 % 161.2 OEA
Feb 2026104.20 0.0 0.00 % 158.4 OEA
Jan 2026104.20 +3.7 0.00 % 157.6 OEA
Dec 2025100.50 0.0 0.00 % 157.2 OEA
Nov 2025100.50 0.0 +2.45 % 156.2 OEA
Oct 2025100.50 -3.7 +2.45 % 155.1 OEA
Sep 2025104.20 0.0 +1.86 % 155.0 OEA
Aug 2025104.20 +3.7 +3.68 % 155.2 OEA
Jul 2025100.50 0.0 0.00 % 154.4 OEA
Jun 2025100.50 -3.7 -3.55 % 153.7 OEA
May 2025104.20 0.0 0.00 % 153.7 OEA
Apr 2025104.20 +3.7 +1.86 % 154.2 OEA
Mar 2025100.50 -3.7 0.00 % 154.8 OEA
Feb 2025104.20 0.0 +1.86 % 154.9 OEA
Jan 2025104.20 +3.7 +3.68 % 155.0 OEA
Dec 2024100.50 +2.4 - 155.7 OEA
Nov 202498.10 0.0 - 156.4 OEA
Oct 202498.10 -4.2 - 156.7 OEA
Sep 2024102.30 +1.8 - 154.7 OEA
Aug 2024100.50 0.0 - 154.4 OEA
Jul 2024100.50 -3.7 - 155.3 OEA
Jun 2024104.20 0.0 - 154.0 OEA
May 2024104.20 +1.9 - 153.5 OEA
Apr 2024102.30 +1.8 - 152.9 OEA
Mar 2024100.50 -1.8 - 151.4 OEA
Feb 2024102.30 +1.8 - 151.2 OEA
Jan 2024100.50 - - 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.