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 PRIMARY ARTICLES [1100000000] Primary articles

Linked values: from May 2026 = WPI 2022-23 [1100000000] x 1.7100 (OEA linking factor).

MonthIndexChange on previous month Change over 12 monthsWPI all commoditiesSource
Sep 2026205.70 +3.7 +8.61 % 172.1 linked (2022-23 × 1.7100)
Aug 2026202.00 +1.4 +5.76 % 169.5 linked (2022-23 × 1.7100)
Jul 2026200.60 +2.1 +6.42 % 168.3 linked (2022-23 × 1.7100)
Jun 2026198.50 +3.6 +6.66 % 168.8 linked (2022-23 × 1.7100)
May 2026194.90 -7.6 +5.47 % 168.5 linked (2022-23 × 1.7100)
Apr 2026202.50 +5.2 +9.22 % 167.6 OEA
Mar 2026197.30 +4.5 +6.36 % 161.2 OEA
Feb 2026192.80 -1.2 +3.21 % 158.4 OEA
Jan 2026194.00 -0.2 +2.27 % 157.6 OEA
Dec 2025194.20 +1.3 +0.21 % 157.2 OEA
Nov 2025192.90 +4.2 -2.53 % 156.2 OEA
Oct 2025188.70 -0.7 -5.93 % 155.1 OEA
Sep 2025189.40 -1.6 -3.12 % 155.0 OEA
Aug 2025191.00 +2.5 -2.10 % 155.2 OEA
Jul 2025188.50 +2.4 -4.70 % 154.4 OEA
Jun 2025186.10 +1.3 -3.22 % 153.7 OEA
May 2025184.80 -0.6 -1.75 % 153.7 OEA
Apr 2025185.40 -0.1 -0.91 % 154.2 OEA
Mar 2025185.50 -1.3 +1.26 % 154.8 OEA
Feb 2025186.80 -2.9 +2.92 % 154.9 OEA
Jan 2025189.70 -4.1 +4.58 % 155.0 OEA
Dec 2024193.80 -4.1 - 155.7 OEA
Nov 2024197.90 -2.7 - 156.4 OEA
Oct 2024200.60 +5.1 - 156.7 OEA
Sep 2024195.50 +0.4 - 154.7 OEA
Aug 2024195.10 -2.7 - 154.4 OEA
Jul 2024197.80 +5.5 - 155.3 OEA
Jun 2024192.30 +4.2 - 154.0 OEA
May 2024188.10 +1.0 - 153.5 OEA
Apr 2024187.10 +3.9 - 152.9 OEA
Mar 2024183.20 +1.7 - 151.4 OEA
Feb 2024181.50 +0.1 - 151.2 OEA
Jan 2024181.40 - - 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.