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 OTHER MINERALS [1103020000] Primary articles

Linked values: from May 2026 = WPI 2022-23 [1103020000] x 2.5473 (item linking factor, ratio of FY 2024-25 geometric means).

MonthIndexChange on previous month Change over 12 monthsWPI all commoditiesSource
Sep 2026320.50 +3.9 +20.94 % 172.1 linked (2022-23 × 2.5473)
Aug 2026316.60 -1.3 +19.79 % 169.5 linked (2022-23 × 2.5473)
Jul 2026317.90 +21.6 +21.01 % 168.3 linked (2022-23 × 2.5473)
Jun 2026296.30 -3.8 +13.13 % 168.8 linked (2022-23 × 2.5473)
May 2026300.10 +23.3 +16.36 % 168.5 linked (2022-23 × 2.5473)
Apr 2026276.80 +4.4 +6.26 % 167.6 OEA
Mar 2026272.40 -2.6 +0.85 % 161.2 OEA
Feb 2026275.00 -1.1 +0.11 % 158.4 OEA
Jan 2026276.10 +2.2 +3.91 % 157.6 OEA
Dec 2025273.90 -1.3 +1.94 % 157.2 OEA
Nov 2025275.20 +5.3 +4.56 % 156.2 OEA
Oct 2025269.90 +4.9 +1.73 % 155.1 OEA
Sep 2025265.00 +0.7 +3.35 % 155.0 OEA
Aug 2025264.30 +1.6 +0.27 % 155.2 OEA
Jul 2025262.70 +0.8 -4.99 % 154.4 OEA
Jun 2025261.90 +4.0 +7.16 % 153.7 OEA
May 2025257.90 -2.6 +1.34 % 153.7 OEA
Apr 2025260.50 -9.6 +1.01 % 154.2 OEA
Mar 2025270.10 -4.6 +6.67 % 154.8 OEA
Feb 2025274.70 +9.0 -1.51 % 154.9 OEA
Jan 2025265.70 -3.0 -5.44 % 155.0 OEA
Dec 2024268.70 +5.5 - 155.7 OEA
Nov 2024263.20 -2.1 - 156.4 OEA
Oct 2024265.30 +8.9 - 156.7 OEA
Sep 2024256.40 -7.2 - 154.7 OEA
Aug 2024263.60 -12.9 - 154.4 OEA
Jul 2024276.50 +32.1 - 155.3 OEA
Jun 2024244.40 -10.1 - 154.0 OEA
May 2024254.50 -3.4 - 153.5 OEA
Apr 2024257.90 +4.7 - 152.9 OEA
Mar 2024253.20 -25.7 - 151.4 OEA
Feb 2024278.90 -2.1 - 151.2 OEA
Jan 2024281.00 - - 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.