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 Onion [1101020103] Primary articles

Linked values: from May 2026 = WPI 2022-23 [1101020103] x 1.7046 (item linking factor, ratio of FY 2024-25 geometric means).

MonthIndexChange on previous month Change over 12 monthsWPI all commoditiesSource
Sep 2026492.60 +180.5 +178.31 % 172.1 linked (2022-23 × 1.7046)
Aug 2026312.10 +43.6 +61.04 % 169.5 linked (2022-23 × 1.7046)
Jul 2026268.50 +72.5 +38.76 % 168.3 linked (2022-23 × 1.7046)
Jun 2026196.00 +40.2 +5.49 % 168.8 linked (2022-23 × 1.7046)
May 2026155.80 +5.4 -11.63 % 168.5 linked (2022-23 × 1.7046)
Apr 2026150.40 -7.4 -26.45 % 167.6 OEA
Mar 2026157.80 -21.8 -42.11 % 161.2 OEA
Feb 2026179.60 -31.2 -40.88 % 158.4 OEA
Jan 2026210.80 +21.7 -33.42 % 157.6 OEA
Dec 2025189.10 +14.1 -54.40 % 157.2 OEA
Nov 2025175.00 +12.7 -64.70 % 156.2 OEA
Oct 2025162.30 -14.7 -66.06 % 155.1 OEA
Sep 2025177.00 -16.8 -64.12 % 155.0 OEA
Aug 2025193.80 +0.3 -50.46 % 155.2 OEA
Jul 2025193.50 +7.7 -44.38 % 154.4 OEA
Jun 2025185.80 +9.5 -33.45 % 153.7 OEA
May 2025176.30 -28.2 -14.17 % 153.7 OEA
Apr 2025204.50 -68.1 +0.20 % 154.2 OEA
Mar 2025272.60 -31.2 +26.15 % 154.8 OEA
Feb 2025303.80 -12.8 +48.05 % 154.9 OEA
Jan 2025316.60 -98.1 +28.33 % 155.0 OEA
Dec 2024414.70 -81.1 - 155.7 OEA
Nov 2024495.80 +17.6 - 156.4 OEA
Oct 2024478.20 -15.1 - 156.7 OEA
Sep 2024493.30 +102.1 - 154.7 OEA
Aug 2024391.20 +43.3 - 154.4 OEA
Jul 2024347.90 +68.7 - 155.3 OEA
Jun 2024279.20 +73.8 - 154.0 OEA
May 2024205.40 +1.3 - 153.5 OEA
Apr 2024204.10 -12.0 - 152.9 OEA
Mar 2024216.10 +10.9 - 151.4 OEA
Feb 2024205.20 -41.5 - 151.2 OEA
Jan 2024246.70 - - 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.