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 Woollen yarn [1304010004] Manufactured products

Linked values: from May 2026 = WPI 2022-23 [1304010014] x 1.1974 (item linking factor, ratio of FY 2024-25 geometric means).

MonthIndexChange on previous month Change over 12 monthsWPI all commoditiesSource
Sep 2026135.50 -0.4 +10.70 % 172.1 linked (2022-23 × 1.1974)
Aug 2026135.90 +3.1 +12.04 % 169.5 linked (2022-23 × 1.1974)
Jul 2026132.80 +1.6 +9.39 % 168.3 linked (2022-23 × 1.1974)
Jun 2026131.20 -2.0 +8.61 % 168.8 linked (2022-23 × 1.1974)
May 2026133.20 -1.3 +10.45 % 168.5 linked (2022-23 × 1.1974)
Apr 2026134.50 +4.4 +10.16 % 167.6 OEA
Mar 2026130.10 +0.1 +6.38 % 161.2 OEA
Feb 2026130.00 +1.6 +7.08 % 158.4 OEA
Jan 2026128.40 +1.2 +5.25 % 157.6 OEA
Dec 2025127.20 +0.5 +4.52 % 157.2 OEA
Nov 2025126.70 +3.2 +4.19 % 156.2 OEA
Oct 2025123.50 +1.1 +2.32 % 155.1 OEA
Sep 2025122.40 +1.1 +1.83 % 155.0 OEA
Aug 2025121.30 -0.1 +1.00 % 155.2 OEA
Jul 2025121.40 +0.6 +1.00 % 154.4 OEA
Jun 2025120.80 +0.2 -1.23 % 153.7 OEA
May 2025120.60 -1.5 +1.86 % 153.7 OEA
Apr 2025122.10 -0.2 +2.52 % 154.2 OEA
Mar 2025122.30 +0.9 +4.17 % 154.8 OEA
Feb 2025121.40 -0.6 +2.53 % 154.9 OEA
Jan 2025122.00 +0.3 +4.36 % 155.0 OEA
Dec 2024121.70 +0.1 - 155.7 OEA
Nov 2024121.60 +0.9 - 156.4 OEA
Oct 2024120.70 +0.5 - 156.7 OEA
Sep 2024120.20 +0.1 - 154.7 OEA
Aug 2024120.10 -0.1 - 154.4 OEA
Jul 2024120.20 -2.1 - 155.3 OEA
Jun 2024122.30 +3.9 - 154.0 OEA
May 2024118.40 -0.7 - 153.5 OEA
Apr 2024119.10 +1.7 - 152.9 OEA
Mar 2024117.40 -1.0 - 151.4 OEA
Feb 2024118.40 +1.5 - 151.2 OEA
Jan 2024116.90 - - 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.