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 Rice mill machinery [1318120001] Manufactured products

Linked values: from May 2026 = WPI 2022-23 [1318130002] x 1.2899 (item linking factor, ratio of FY 2024-25 geometric means).

MonthIndexChange on previous month Change over 12 monthsWPI all commoditiesSource
Sep 2026133.60 +0.5 +5.03 % 172.1 linked (2022-23 × 1.2899)
Aug 2026133.10 0.0 +4.07 % 169.5 linked (2022-23 × 1.2899)
Jul 2026133.10 +0.8 +3.66 % 168.3 linked (2022-23 × 1.2899)
Jun 2026132.30 +1.5 +2.88 % 168.8 linked (2022-23 × 1.2899)
May 2026130.80 +1.2 +2.11 % 168.5 linked (2022-23 × 1.2899)
Apr 2026129.60 +0.5 +1.81 % 167.6 OEA
Mar 2026129.10 +0.5 +1.57 % 161.2 OEA
Feb 2026128.60 -0.1 +0.08 % 158.4 OEA
Jan 2026128.70 0.0 +0.47 % 157.6 OEA
Dec 2025128.70 +1.4 +0.70 % 157.2 OEA
Nov 2025127.30 -0.2 0.00 % 156.2 OEA
Oct 2025127.50 +0.3 -1.24 % 155.1 OEA
Sep 2025127.20 -0.7 -0.55 % 155.0 OEA
Aug 2025127.90 -0.5 0.00 % 155.2 OEA
Jul 2025128.40 -0.2 +0.78 % 154.4 OEA
Jun 2025128.60 +0.5 +0.16 % 153.7 OEA
May 2025128.10 +0.8 0.00 % 153.7 OEA
Apr 2025127.30 +0.2 -0.70 % 154.2 OEA
Mar 2025127.10 -1.4 -0.70 % 154.8 OEA
Feb 2025128.50 +0.4 +0.55 % 154.9 OEA
Jan 2025128.10 +0.3 -0.31 % 155.0 OEA
Dec 2024127.80 +0.5 - 155.7 OEA
Nov 2024127.30 -1.8 - 156.4 OEA
Oct 2024129.10 +1.2 - 156.7 OEA
Sep 2024127.90 0.0 - 154.7 OEA
Aug 2024127.90 +0.5 - 154.4 OEA
Jul 2024127.40 -1.0 - 155.3 OEA
Jun 2024128.40 +0.3 - 154.0 OEA
May 2024128.10 -0.1 - 153.5 OEA
Apr 2024128.20 +0.2 - 152.9 OEA
Mar 2024128.00 +0.2 - 151.4 OEA
Feb 2024127.80 -0.7 - 151.2 OEA
Jan 2024128.50 - - 151.2 OEA

Enter a month by hand

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.