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 OIL SEEDS [1102020000] Primary articles

Linked values: from May 2026 = WPI 2022-23 [1102020000] x 1.9975 (item linking factor, ratio of FY 2024-25 geometric means).

MonthIndexChange on previous month Change over 12 monthsWPI all commoditiesSource
Sep 2026236.70 -3.6 +16.89 % 172.1 linked (2022-23 × 1.9975)
Aug 2026240.30 +0.8 +18.03 % 169.5 linked (2022-23 × 1.9975)
Jul 2026239.50 +5.4 +21.08 % 168.3 linked (2022-23 × 1.9975)
Jun 2026234.10 +5.6 +22.82 % 168.8 linked (2022-23 × 1.9975)
May 2026228.50 +4.8 +24.18 % 168.5 linked (2022-23 × 1.9975)
Apr 2026223.70 +3.5 +22.24 % 167.6 OEA
Mar 2026220.20 -4.1 +22.81 % 161.2 OEA
Feb 2026224.30 +5.6 +25.38 % 158.4 OEA
Jan 2026218.70 +8.6 +19.25 % 157.6 OEA
Dec 2025210.10 +6.8 +14.93 % 157.2 OEA
Nov 2025203.30 +5.1 +9.54 % 156.2 OEA
Oct 2025198.20 -4.3 +6.90 % 155.1 OEA
Sep 2025202.50 -1.1 +9.70 % 155.0 OEA
Aug 2025203.60 +5.8 +14.00 % 155.2 OEA
Jul 2025197.80 +7.2 +9.77 % 154.4 OEA
Jun 2025190.60 +6.6 +5.89 % 153.7 OEA
May 2025184.00 +1.0 +2.68 % 153.7 OEA
Apr 2025183.00 +3.7 +1.95 % 154.2 OEA
Mar 2025179.30 +0.4 +0.34 % 154.8 OEA
Feb 2025178.90 -4.5 +0.11 % 154.9 OEA
Jan 2025183.40 +0.6 +0.16 % 155.0 OEA
Dec 2024182.80 -2.8 - 155.7 OEA
Nov 2024185.60 +0.2 - 156.4 OEA
Oct 2024185.40 +0.8 - 156.7 OEA
Sep 2024184.60 +6.0 - 154.7 OEA
Aug 2024178.60 -1.6 - 154.4 OEA
Jul 2024180.20 +0.2 - 155.3 OEA
Jun 2024180.00 +0.8 - 154.0 OEA
May 2024179.20 -0.3 - 153.5 OEA
Apr 2024179.50 +0.8 - 152.9 OEA
Mar 2024178.70 0.0 - 151.4 OEA
Feb 2024178.70 -4.4 - 151.2 OEA
Jan 2024183.10 - - 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.