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 starches and starch products [1301070000] Manufactured products

Linked values: from May 2026 = WPI 2022-23 [1301070000] x 1.6833 (item linking factor, ratio of FY 2024-25 geometric means).

MonthIndexChange on previous month Change over 12 monthsWPI all commoditiesSource
Sep 2026162.60 +3.4 +7.82 % 172.1 linked (2022-23 × 1.6833)
Aug 2026159.20 +3.7 +5.29 % 169.5 linked (2022-23 × 1.6833)
Jul 2026155.50 +6.4 +1.83 % 168.3 linked (2022-23 × 1.6833)
Jun 2026149.10 +3.5 -3.62 % 168.8 linked (2022-23 × 1.6833)
May 2026145.60 -2.7 -7.14 % 168.5 linked (2022-23 × 1.6833)
Apr 2026148.30 +2.5 -6.85 % 167.6 OEA
Mar 2026145.80 +1.3 -9.27 % 161.2 OEA
Feb 2026144.50 +0.2 -11.24 % 158.4 OEA
Jan 2026144.30 -1.6 -12.07 % 157.6 OEA
Dec 2025145.90 -0.6 -11.63 % 157.2 OEA
Nov 2025146.50 -1.3 -13.31 % 156.2 OEA
Oct 2025147.80 -3.0 -14.27 % 155.1 OEA
Sep 2025150.80 -0.4 -13.63 % 155.0 OEA
Aug 2025151.20 -1.5 -12.75 % 155.2 OEA
Jul 2025152.70 -2.0 -9.86 % 154.4 OEA
Jun 2025154.70 -2.1 -6.58 % 153.7 OEA
May 2025156.80 -2.4 -3.74 % 153.7 OEA
Apr 2025159.20 -1.5 -2.81 % 154.2 OEA
Mar 2025160.70 -2.1 -3.31 % 154.8 OEA
Feb 2025162.80 -1.3 -1.75 % 154.9 OEA
Jan 2025164.10 -1.0 -0.06 % 155.0 OEA
Dec 2024165.10 -3.9 - 155.7 OEA
Nov 2024169.00 -3.4 - 156.4 OEA
Oct 2024172.40 -2.2 - 156.7 OEA
Sep 2024174.60 +1.3 - 154.7 OEA
Aug 2024173.30 +3.9 - 154.4 OEA
Jul 2024169.40 +3.8 - 155.3 OEA
Jun 2024165.60 +2.7 - 154.0 OEA
May 2024162.90 -0.9 - 153.5 OEA
Apr 2024163.80 -2.4 - 152.9 OEA
Mar 2024166.20 +0.5 - 151.4 OEA
Feb 2024165.70 +1.5 - 151.2 OEA
Jan 2024164.20 - - 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.