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.

Download WPI 2011-12 (CSV)
CPI-IW - labour (89 centres) WPI 2022-23 (1136 items) WPI 2011-12 (869 items) Custom - user defined (1) By item By month

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 Building of ships and floating structures [1320010000] Manufactured products

Linked values: from May 2026 = WPI 2022-23 [1320010000] x 1.7860 (item linking factor, ratio of FY 2024-25 geometric means).

MonthIndexChange on previous month Change over 12 monthsWPI all commoditiesSource
Sep 2026182.40 0.0 -4.35 % 172.1 linked (2022-23 × 1.7860)
Aug 2026182.40 0.0 -4.35 % 169.5 linked (2022-23 × 1.7860)
Jul 2026182.40 0.0 -4.35 % 168.3 linked (2022-23 × 1.7860)
Jun 2026182.40 0.0 -4.35 % 168.8 linked (2022-23 × 1.7860)
May 2026182.40 -23.4 -4.35 % 168.5 linked (2022-23 × 1.7860)
Apr 2026205.80 0.0 +7.97 % 167.6 OEA
Mar 2026205.80 0.0 +9.24 % 161.2 OEA
Feb 2026205.80 +15.0 +9.24 % 158.4 OEA
Jan 2026190.80 0.0 +1.27 % 157.6 OEA
Dec 2025190.80 +0.1 +7.25 % 157.2 OEA
Nov 2025190.70 0.0 +7.20 % 156.2 OEA
Oct 2025190.70 0.0 +7.20 % 155.1 OEA
Sep 2025190.70 0.0 +7.20 % 155.0 OEA
Aug 2025190.70 0.0 +7.20 % 155.2 OEA
Jul 2025190.70 0.0 +7.20 % 154.4 OEA
Jun 2025190.70 0.0 +7.20 % 153.7 OEA
May 2025190.70 +0.1 +7.20 % 153.7 OEA
Apr 2025190.60 +2.2 +7.14 % 154.2 OEA
Mar 2025188.40 0.0 +15.09 % 154.8 OEA
Feb 2025188.40 0.0 +15.09 % 154.9 OEA
Jan 2025188.40 +10.5 +15.09 % 155.0 OEA
Dec 2024177.90 0.0 - 155.7 OEA
Nov 2024177.90 0.0 - 156.4 OEA
Oct 2024177.90 0.0 - 156.7 OEA
Sep 2024177.90 0.0 - 154.7 OEA
Aug 2024177.90 0.0 - 154.4 OEA
Jul 2024177.90 0.0 - 155.3 OEA
Jun 2024177.90 0.0 - 154.0 OEA
May 2024177.90 0.0 - 153.5 OEA
Apr 2024177.90 +14.2 - 152.9 OEA
Mar 2024163.70 0.0 - 151.4 OEA
Feb 2024163.70 0.0 - 151.2 OEA
Jan 2024163.70 - - 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.