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 Boilers [1315030001] Manufactured products

Linked values: from May 2026 = WPI 2022-23 [1315030001] x 0.9656 (item linking factor, ratio of FY 2024-25 geometric means).

MonthIndexChange on previous month Change over 12 monthsWPI all commoditiesSource
Sep 2026114.00 +1.1 +1.24 % 172.1 linked (2022-23 × 0.9656)
Aug 2026112.90 -0.3 +0.36 % 169.5 linked (2022-23 × 0.9656)
Jul 2026113.20 -3.3 +0.53 % 168.3 linked (2022-23 × 0.9656)
Jun 2026116.50 +4.6 +3.65 % 168.8 linked (2022-23 × 0.9656)
May 2026111.90 -0.2 -1.24 % 168.5 linked (2022-23 × 0.9656)
Apr 2026112.10 0.0 -0.80 % 167.6 OEA
Mar 2026112.10 0.0 -1.23 % 161.2 OEA
Feb 2026112.10 0.0 +2.00 % 158.4 OEA
Jan 2026112.10 -0.1 +2.00 % 157.6 OEA
Dec 2025112.20 0.0 +3.13 % 157.2 OEA
Nov 2025112.20 -0.3 -1.06 % 156.2 OEA
Oct 2025112.50 -0.1 -1.57 % 155.1 OEA
Sep 2025112.60 +0.1 0.00 % 155.0 OEA
Aug 2025112.50 -0.1 -0.53 % 155.2 OEA
Jul 2025112.60 +0.2 -0.35 % 154.4 OEA
Jun 2025112.40 -0.9 +1.44 % 153.7 OEA
May 2025113.30 +0.3 +2.16 % 153.7 OEA
Apr 2025113.00 -0.5 +3.86 % 154.2 OEA
Mar 2025113.50 +3.6 +6.77 % 154.8 OEA
Feb 2025109.90 0.0 +3.88 % 154.9 OEA
Jan 2025109.90 +1.1 +2.90 % 155.0 OEA
Dec 2024108.80 -4.6 - 155.7 OEA
Nov 2024113.40 -0.9 - 156.4 OEA
Oct 2024114.30 +1.7 - 156.7 OEA
Sep 2024112.60 -0.5 - 154.7 OEA
Aug 2024113.10 +0.1 - 154.4 OEA
Jul 2024113.00 +2.2 - 155.3 OEA
Jun 2024110.80 -0.1 - 154.0 OEA
May 2024110.90 +2.1 - 153.5 OEA
Apr 2024108.80 +2.5 - 152.9 OEA
Mar 2024106.30 +0.5 - 151.4 OEA
Feb 2024105.80 -1.0 - 151.2 OEA
Jan 2024106.80 - - 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.