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 Nylon rope [1304050001] Manufactured products

Linked values: from May 2026 = WPI 2022-23 [1304060004] x 1.1200 (item linking factor, ratio of FY 2024-25 geometric means).

MonthIndexChange on previous month Change over 12 monthsWPI all commoditiesSource
Sep 2026107.00 +0.8 -0.28 % 172.1 linked (2022-23 × 1.1200)
Aug 2026106.20 +0.5 -1.94 % 169.5 linked (2022-23 × 1.1200)
Jul 2026105.70 +0.3 -1.95 % 168.3 linked (2022-23 × 1.1200)
Jun 2026105.40 -0.3 -3.21 % 168.8 linked (2022-23 × 1.1200)
May 2026105.70 -1.5 -3.21 % 168.5 linked (2022-23 × 1.1200)
Apr 2026107.20 +1.0 -2.28 % 167.6 OEA
Mar 2026106.20 +0.3 -4.07 % 161.2 OEA
Feb 2026105.90 -0.5 -5.28 % 158.4 OEA
Jan 2026106.40 +0.7 -4.74 % 157.6 OEA
Dec 2025105.70 -0.3 -4.69 % 157.2 OEA
Nov 2025106.00 -0.6 -4.42 % 156.2 OEA
Oct 2025106.60 -0.7 -4.99 % 155.1 OEA
Sep 2025107.30 -1.0 -4.28 % 155.0 OEA
Aug 2025108.30 +0.5 -4.50 % 155.2 OEA
Jul 2025107.80 -1.1 -4.69 % 154.4 OEA
Jun 2025108.90 -0.3 -3.03 % 153.7 OEA
May 2025109.20 -0.5 -2.59 % 153.7 OEA
Apr 2025109.70 -1.0 -1.70 % 154.2 OEA
Mar 2025110.70 -1.1 -0.90 % 154.8 OEA
Feb 2025111.80 +0.1 +0.63 % 154.9 OEA
Jan 2025111.70 +0.8 +0.99 % 155.0 OEA
Dec 2024110.90 0.0 - 155.7 OEA
Nov 2024110.90 -1.3 - 156.4 OEA
Oct 2024112.20 +0.1 - 156.7 OEA
Sep 2024112.10 -1.3 - 154.7 OEA
Aug 2024113.40 +0.3 - 154.4 OEA
Jul 2024113.10 +0.8 - 155.3 OEA
Jun 2024112.30 +0.2 - 154.0 OEA
May 2024112.10 +0.5 - 153.5 OEA
Apr 2024111.60 -0.1 - 152.9 OEA
Mar 2024111.70 +0.6 - 151.4 OEA
Feb 2024111.10 +0.5 - 151.2 OEA
Jan 2024110.60 - - 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.