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 Manganese Ore [1103010004] Primary articles

Linked values: from May 2026 = WPI 2022-23 [1103010004] x 1.4989 (item linking factor, ratio of FY 2024-25 geometric means).

MonthIndexChange on previous month Change over 12 monthsWPI all commoditiesSource
Sep 2026168.30 +3.4 -2.43 % 172.1 linked (2022-23 × 1.4989)
Aug 2026164.90 -6.6 -1.43 % 169.5 linked (2022-23 × 1.4989)
Jul 2026171.50 -11.2 +6.32 % 168.3 linked (2022-23 × 1.4989)
Jun 2026182.70 -3.5 +12.71 % 168.8 linked (2022-23 × 1.4989)
May 2026186.20 -1.8 +14.80 % 168.5 linked (2022-23 × 1.4989)
Apr 2026188.00 +13.3 +7.12 % 167.6 OEA
Mar 2026174.70 +1.0 +7.64 % 161.2 OEA
Feb 2026173.70 -0.2 +16.27 % 158.4 OEA
Jan 2026173.90 +13.1 +15.47 % 157.6 OEA
Dec 2025160.80 -3.7 +0.75 % 157.2 OEA
Nov 2025164.50 -3.6 +8.94 % 156.2 OEA
Oct 2025168.10 -4.4 +3.57 % 155.1 OEA
Sep 2025172.50 +5.2 +6.81 % 155.0 OEA
Aug 2025167.30 +6.0 -9.47 % 155.2 OEA
Jul 2025161.30 -0.8 -6.49 % 154.4 OEA
Jun 2025162.10 -0.1 -19.35 % 153.7 OEA
May 2025162.20 -13.3 +0.68 % 153.7 OEA
Apr 2025175.50 +13.2 +28.01 % 154.2 OEA
Mar 2025162.30 +12.9 +24.37 % 154.8 OEA
Feb 2025149.40 -1.2 +17.36 % 154.9 OEA
Jan 2025150.60 -9.0 +17.47 % 155.0 OEA
Dec 2024159.60 +8.6 - 155.7 OEA
Nov 2024151.00 -11.3 - 156.4 OEA
Oct 2024162.30 +0.8 - 156.7 OEA
Sep 2024161.50 -23.3 - 154.7 OEA
Aug 2024184.80 +12.3 - 154.4 OEA
Jul 2024172.50 -28.5 - 155.3 OEA
Jun 2024201.00 +39.9 - 154.0 OEA
May 2024161.10 +24.0 - 153.5 OEA
Apr 2024137.10 +6.6 - 152.9 OEA
Mar 2024130.50 +3.2 - 151.4 OEA
Feb 2024127.30 -0.9 - 151.2 OEA
Jan 2024128.20 - - 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.