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 Camphor [1310010015] Manufactured products

Linked values: from May 2026 = WPI 2022-23 [1310010029] x 1.9434 (item linking factor, ratio of FY 2024-25 geometric means).

MonthIndexChange on previous month Change over 12 monthsWPI all commoditiesSource
Sep 2026205.40 -9.2 +34.42 % 172.1 linked (2022-23 × 1.9434)
Aug 2026214.60 +10.3 +37.21 % 169.5 linked (2022-23 × 1.9434)
Jul 2026204.30 -0.5 +32.92 % 168.3 linked (2022-23 × 1.9434)
Jun 2026204.80 +6.0 +34.56 % 168.8 linked (2022-23 × 1.9434)
May 2026198.80 +14.6 +36.16 % 168.5 linked (2022-23 × 1.9434)
Apr 2026184.20 +24.5 +28.81 % 167.6 OEA
Mar 2026159.70 +6.4 +14.64 % 161.2 OEA
Feb 2026153.30 +1.4 +11.49 % 158.4 OEA
Jan 2026151.90 -1.3 +14.12 % 157.6 OEA
Dec 2025153.20 -1.3 +20.25 % 157.2 OEA
Nov 2025154.50 -0.3 +15.90 % 156.2 OEA
Oct 2025154.80 +2.0 +7.95 % 155.1 OEA
Sep 2025152.80 -3.6 0.00 % 155.0 OEA
Aug 2025156.40 +2.7 +3.23 % 155.2 OEA
Jul 2025153.70 +1.5 +9.16 % 154.4 OEA
Jun 2025152.20 +6.2 +19.28 % 153.7 OEA
May 2025146.00 +3.0 +18.41 % 153.7 OEA
Apr 2025143.00 +3.7 +22.96 % 154.2 OEA
Mar 2025139.30 +1.8 +15.99 % 154.8 OEA
Feb 2025137.50 +4.4 +17.62 % 154.9 OEA
Jan 2025133.10 +5.7 +14.74 % 155.0 OEA
Dec 2024127.40 -5.9 - 155.7 OEA
Nov 2024133.30 -10.1 - 156.4 OEA
Oct 2024143.40 -9.4 - 156.7 OEA
Sep 2024152.80 +1.3 - 154.7 OEA
Aug 2024151.50 +10.7 - 154.4 OEA
Jul 2024140.80 +13.2 - 155.3 OEA
Jun 2024127.60 +4.3 - 154.0 OEA
May 2024123.30 +7.0 - 153.5 OEA
Apr 2024116.30 -3.8 - 152.9 OEA
Mar 2024120.10 +3.2 - 151.4 OEA
Feb 2024116.90 +0.9 - 151.2 OEA
Jan 2024116.00 - - 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.