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 MANUFACTURE OF PAPER AND PAPER PRODUCTS [1308000000] Manufactured products

Linked values: from May 2026 = WPI 2022-23 [1308000000] x 1.5405 (item linking factor, ratio of FY 2024-25 geometric means).

MonthIndexChange on previous month Change over 12 monthsWPI all commoditiesSource
Sep 2026147.90 +1.6 +5.49 % 172.1 linked (2022-23 × 1.5405)
Aug 2026146.30 +0.9 +4.57 % 169.5 linked (2022-23 × 1.5405)
Jul 2026145.40 +0.9 +3.93 % 168.3 linked (2022-23 × 1.5405)
Jun 2026144.50 -0.5 +3.21 % 168.8 linked (2022-23 × 1.5405)
May 2026145.00 +1.2 +3.50 % 168.5 linked (2022-23 × 1.5405)
Apr 2026143.80 +1.9 +2.28 % 167.6 OEA
Mar 2026141.90 +1.1 +0.64 % 161.2 OEA
Feb 2026140.80 +0.2 -0.28 % 158.4 OEA
Jan 2026140.60 +0.3 +0.79 % 157.6 OEA
Dec 2025140.30 -0.1 +1.45 % 157.2 OEA
Nov 2025140.40 +0.1 +1.37 % 156.2 OEA
Oct 2025140.30 +0.1 +0.36 % 155.1 OEA
Sep 2025140.20 +0.3 +0.29 % 155.0 OEA
Aug 2025139.90 0.0 +0.07 % 155.2 OEA
Jul 2025139.90 -0.1 +1.01 % 154.4 OEA
Jun 2025140.00 -0.1 +1.16 % 153.7 OEA
May 2025140.10 -0.5 +1.45 % 153.7 OEA
Apr 2025140.60 -0.4 +1.96 % 154.2 OEA
Mar 2025141.00 -0.2 +2.17 % 154.8 OEA
Feb 2025141.20 +1.7 +2.39 % 154.9 OEA
Jan 2025139.50 +1.2 +0.58 % 155.0 OEA
Dec 2024138.30 -0.2 - 155.7 OEA
Nov 2024138.50 -1.3 - 156.4 OEA
Oct 2024139.80 0.0 - 156.7 OEA
Sep 2024139.80 0.0 - 154.7 OEA
Aug 2024139.80 +1.3 - 154.4 OEA
Jul 2024138.50 +0.1 - 155.3 OEA
Jun 2024138.40 +0.3 - 154.0 OEA
May 2024138.10 +0.2 - 153.5 OEA
Apr 2024137.90 -0.1 - 152.9 OEA
Mar 2024138.00 +0.1 - 151.4 OEA
Feb 2024137.90 -0.8 - 151.2 OEA
Jan 2024138.70 - - 151.2 OEA

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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.