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 FIBRES [1102010000] Primary articles

Linked values: from May 2026 = WPI 2022-23 [1102010000] x 2.0702 (item linking factor, ratio of FY 2024-25 geometric means).

MonthIndexChange on previous month Change over 12 monthsWPI all commoditiesSource
Sep 2026204.90 -1.7 +21.10 % 172.1 linked (2022-23 × 2.0702)
Aug 2026206.60 +10.8 +23.27 % 169.5 linked (2022-23 × 2.0702)
Jul 2026195.80 0.0 +18.38 % 168.3 linked (2022-23 × 2.0702)
Jun 2026195.80 +2.2 +20.34 % 168.8 linked (2022-23 × 2.0702)
May 2026193.60 +4.5 +18.41 % 168.5 linked (2022-23 × 2.0702)
Apr 2026189.10 +6.2 +15.73 % 167.6 OEA
Mar 2026182.90 +6.5 +12.83 % 161.2 OEA
Feb 2026176.40 +1.3 +8.35 % 158.4 OEA
Jan 2026175.10 +7.1 +8.42 % 157.6 OEA
Dec 2025168.00 +3.6 +5.46 % 157.2 OEA
Nov 2025164.40 -2.4 +3.14 % 156.2 OEA
Oct 2025166.80 -2.4 +3.67 % 155.1 OEA
Sep 2025169.20 +1.6 +3.30 % 155.0 OEA
Aug 2025167.60 +2.2 +3.97 % 155.2 OEA
Jul 2025165.40 +2.7 +0.92 % 154.4 OEA
Jun 2025162.70 -0.8 +1.56 % 153.7 OEA
May 2025163.50 +0.1 +2.25 % 153.7 OEA
Apr 2025163.40 +1.3 +1.18 % 154.2 OEA
Mar 2025162.10 -0.7 -1.76 % 154.8 OEA
Feb 2025162.80 +1.3 +2.01 % 154.9 OEA
Jan 2025161.50 +2.2 -0.86 % 155.0 OEA
Dec 2024159.30 -0.1 - 155.7 OEA
Nov 2024159.40 -1.5 - 156.4 OEA
Oct 2024160.90 -2.9 - 156.7 OEA
Sep 2024163.80 +2.6 - 154.7 OEA
Aug 2024161.20 -2.7 - 154.4 OEA
Jul 2024163.90 +3.7 - 155.3 OEA
Jun 2024160.20 +0.3 - 154.0 OEA
May 2024159.90 -1.6 - 153.5 OEA
Apr 2024161.50 -3.5 - 152.9 OEA
Mar 2024165.00 +5.4 - 151.4 OEA
Feb 2024159.60 -3.3 - 151.2 OEA
Jan 2024162.90 - - 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.